Sp
ANDERSON, 1999
Locality: Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
NMC 34824, 8528: Skulls.
Locality: Se of Lisman, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
AMNH 5030: Skull.
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
LACM 59049: Skull
MPM 81.426: Skull.
Locality: Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SMM P64.17.3, P66.33.1, P60.9.1, P62.15.2, P93.16.1, P96.17.1, P96.11.1: Skulls.
Locality: Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SMM P2-a-579, P2-A-760: Skulls.
_____________________________________________________________________________________
ANONYMOUS, 1930
Locality: Near Red Lodge, in Southern Montana.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Princeton University: Bones and teeth.
Note: Near the material are fragmentary eggshells.
_____________________________________________________________________________________
ANONYMOUS, 1993
Locality:
Horizon:
Biostratigraphy:
Age:
Material:
UCMP: Teeth of marks of Tyrannosaurus rex on a piece of the pelvis.
_____________________________________________________________________________________
ANONYMOUS, 1997
Locality: Maurice Williams’s Ranch, Cheyenne River Indian Reservation,
near Faith, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Field Museum: Tooth fragments.
Note: Found with “Sue”.
_____________________________________________________________________________________
BREITHAUPT, 1985
Locality: Wyoming.
Horizon: Medicine Bow Formation.
Biostratigraphy:
Age: Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late
Cretaceous.
Material:
Number: Not given:
Locality: Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
BREITHAUPT, 2001
Locality: Hoodoo Point, SDSM V9717, Thunder Basin National Grassland, Northeastern
Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, Upper Senonian subepoch, Upper
Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: 45 specimens.
_____________________________________________________________________________________
BJORK, 1985
Locality: Ruby Site, northeastern Butte County, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
BRINKMAN, LIBKE, McKELLAR, GASILOV & SOMERS, 2022
Locality: "Site B" (RSM site 28769), just outside Grasslands Natinoal Park East Block, Southern Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Late Maastricthain Stage, Late Senonian Subepoch, Late Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragmentary skull and skeleton.
_____________________________________________________________________________________
BROWN, 1906
Locality: 130 miles northwest of Miles City, Hell Creek, Montana.
Horizon: In the Ceratops Clays, 240 feet above Pierre Shales, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
AMNH 971: Fragmentary skeleton.
AMNH 5880: A nearly complete fore limb.
_____________________________________________________________________________________
BROWN & SCHLAIKER, 1940
Locality: Crooked Creek, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
AMNH 5006: Postorbital horn core of a juvenile.
_____________________________________________________________________________________
BROWNE, 1992
Locality: On private property near Lusk, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragmentary skeleton with teeth marks and a broken tyrannosaur
tooth.
_____________________________________________________________________________________
CARPENTER, 1979
Locality: Rock Creek, Weld County, Colorado.
Horizon: Laramie Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
UCM 7572: Horn core and basioccipital.
Locality: Weld County, Colorado.
Horizon: Laramie Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
UCM 13745: Frill fragment.
UCM 13749: Horn core fragment.
UCM 38752, 38232, 38233, 39030: Teeth.
_____________________________________________________________________________________
CARPENTER & ALF, 1994/TOKARYK, 1990
Locality: Killdeer Badlands, Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Baby bone.
_____________________________________________________________________________________
CARPI, 1993
Locality: Eastern badlands of Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR: Nearly complete skull and skeleton.
_____________________________________________________________________________________
DAESCHLER & FIORILLO, 1989
Locality: Vicinity of Fort Yates, North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
ANSP 17094: Orbital horn core.
ANSP 17095: Occipital condyle.
ANSP 17108: Frill fragment.
_____________________________________________________________________________________
DREVERMANN, 1913
Locality: Not given.
Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material:
Vaterstadt, Weise, Museum: Skull.
_____________________________________________________________________________________
EATON, DIEM, ARCHIBALD, SCHIERUP & MUNK, 1999
Locality: UMNH VP Locality 11, Webster’s Flat Locality, Markagunt Plateau,
Southern Utah.
Horizon: Tibbet Canyon Member, Straight Cliffs Formation.
Biostratigraphy:
Age: Upper Turonian Stage or Lower Coniacian Stage, lowest Senonian subepoch,
lower Gulf Epoch, Early Late Cretaceous.
Material:
Number: Not given: 2 teeth.
_____________________________________________________________________________________
ERICKSON & OLSON, 1996
Locality: East central Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 799: Fragmentary skeleton with teeth marks on the sacrum and left pelvis
of a Tyrannosaurus rex.
_____________________________________________________________________________________
ESTES, 1964
Locality: UCMP Localities; V-5622, V-5624, V-5625, V-5711, V-5715,
V-5717, V-5719, V-5820, V-5922, Eastern Wyoming.
Locality: UCMP V-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River
Basin, Niobrara County, Wyoming.
Localities: UCMP V-5616, Altman Blowout, this large blowout, site of the UCMP
field-party camps form 1956 to 1960, is just east of the crest of the divide
separating Lance Creek and Hancock Creek and 100 yards east of a dirt road.
Fossils were found in anthills, talus, and sandstone exposed in the blowout,
which is in the NE 1/4, Sec. 9, T37N, R64W, Eastern Wyoming.
Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek,
Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.
Locality: UCMP V-5817, False Disciple Point, cross-stratified sandstone and
sandy shales cropping out on the top of the northern end of a long, northwestward-trending
ridge that extends from the crest of the divide between the Hancock and Lance
Creek drainages, Wyoming.
Locality: UCMP V-5818: Anthills built around the rim of the only blowout on
the south side of a canyon that empties into a tributary of Hancock Creek,
Eastern Wyoming.
Locality: UCMP V-5918, Fish tooth Hill, Anthills and talus found in and around
a badland area on the eastern side of a north-trending ridge extending from
the crest of the divide between Cow and Dogie Creeks, Eastern Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Numbers: Not given: Isolated teeth.
V-5717: A scapula and associated humerus.
_____________________________________________________________________________________
EVANS, LAM, MADDIN & CONACHER, 2003
Locality: Prehistoric Park Quarry, Alberta Province, Canada.
Horizon: Horseshoe Canyon Formation (Lower Edmonton Formation), Edmonton Group.
Biostratigraphy:
Age: Edmontonian age, lower Maastrichtian Stage, Upper Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
FARKE & ALLEY, 2006
Locality: Full locality data are on file at the TLAM, Corson County, South
Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
TLAM G. BA.2004.024.0001: Abnormal squamosal.
Note: Paleopathologic and show rehealing.
_____________________________________________________________________________________
FUJIWARA, 2005
Locality: Bowman County, North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
NSM PV 20379: Nearly complete articulation on the right side.
_____________________________________________________________________________________
FUJIWARA, & YUJI, 2011
Locality: 45°50'N, 103°54'W, Harding County, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
GMNH-PV 124: Fragmentary skull and fragmentary skeleton.
_____________________________________________________________________________________
GILMORE, 1919
Locality: Schneider Creek, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
USNM 8091: Articulated 8 dorsal vertebrae.
Locality: Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
USNM 8013: Diseased scapula.
Locality:
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
USNM 6679: Fragmentary skull.
_____________________________________________________________________________________
= Torosaurus or Triceratops GLUT, 2006 (Note: Longrich, 2011, lists this specimen as a Triceratops)
Locality: Niobrara County, Wyoming.
Horizon: Laramie Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
LACM 150076: Partial skeleton.
_____________________________________________________________________________________
GOODWIN & HORNER, 2010
Locality: HC-425, Afternoon Delight, Montana.
Horizon: Lower part of middle unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2569: Disarticualted skull including parietal, squamosals, postorbital horn core, jual, maxilla and quadrates of a juvenile
Locality: HC-317, Sierra Trike, Sierrra Skull, near Nelson Creek, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1199: Fragmentary skull of a juvenile.
Locality: UCMP V88081, Russell Basin, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 136092: Fragmentary skull of a sub adult.
Numbers: Not given: 3 more fragmentary skulls.
Locality: UCMP V88001, High Triceratops, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material :
UCMP 137263: Fragmentary skull of a sub adult.
Numbers: Not given: Fragmentary elements.
Locality: Mark’s Trike II Site, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2597: Fragmentary skull of a sub adult.
Numbers: Not given: Fragmentary elements.
_____________________________________________________________________________________
GOODWIN & HORNER, 2014
Locality: UCMP locality V84186, McCone County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 136306: Fragmentary skull of a juvenile.
_____________________________________________________________________________________
HOLRYOD & HUTCHISON, 2002
Locality: V 86071, western North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
172090:
Locality: V 86101, western North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
172363:
_____________________________________________________________________________________
JACOBSON & SROKA, 1998
Locality: A private ranch in Corson County, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
KAYE, 1997 in TANKE & ROTHSCHILD, 2002
Locality: Near Lewistown, Feigns County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Field Museum, Chicago: Skull.
Note: Palaeopathology, one horn is 24 inches long the other is 31 inches long.
_____________________________________________________________________________________
KEENAN & SCANNELLA,2014
Locality: The Quittin' Time Bonebed, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Material:
MOR 2574 (field numbers as follows):
07-28-2006-1: Left dentary.
07-28-2006-1C: Lateral exxtend-right squamosal.
07-28-2006-2: Cranial (contributes to orbit).
07-28-2006-2 (1/4): Premaxillla (in 4 parts).
07-28-2006-2 (2/4): Partial premaxilla.
07-28-2006-2 (3/4): Partial premaxilla.
07-28-2006-2 (4/4): Partial premaxilla.
07-28-2006-3: Partial midline of a frill.
07-28-2006-4: Epinsal.
07-28-2006-5: Right premaxilla.
07-28-2006-6: Partial right squamosal.
07-30-2006-7: Right (?) orbital horn core.
07-30-2006-7A: Posteroir margin squamosal.
07-30-2006-7B:Partial right squamosal.
07-30-2006-7C: Partial (goes with 7A).
07-30-2006-7D: Partial (goes with 7A, 7C).
07-30-2006-8: Left postorbital horn core.
07-30-2006-9: Angular.
07-30-2006-10: Basal left squamosal.
07-30-2006-11: Rostrum.
07-31-2006-12: Right nasal.
07-31-2006-12A: Lacrimal.
07-31-2006-12B: Left nasal.
07-31-2006-13: Right jugal.
07-31-2006-13A: Right lacrimal.
07-31-2006-13B: Venral portion right jugal.
08-06-2006-14,16, 29, 30, 47, 06-23-2006-48, 06-23-2006-54, 55 06-28-2006-56-58: Ribs.
08-06-2006-15: Anterior pubis.
08-06-2006-17, 39: Unknown.
08-06-2006-18: Posterior margin of parietal.
08-06-2006-19 to 23, 27: Vertebrae with process.
08-06-2006-24, 25: Presacral vertebrae.
08-06-2006-26, 28: Centra.
08-06-2006-31: Neural spine + process.
08-06-2006-32, 43: Iliae.
08-06-2006-33 to 36: Rib associated.
08-06-2006-38: Rib part.
08-06-2006-40: Rubis.
08-06-2006-41: Sacral rib.
08-06-2006-42: Vertebra.
08-06-2006-44: Sacrum..
08-06-2006-45, 46: Caudal vertebrae.
06-23-2006-49: Incomplete rib.
06-23-2006-50: Caudal vertebra.
06-23-2006-51: Ischium.
06-24-2006-52: Crushed rib.
06-23-2006-53: Unknown (foil).
06-28-2006-60: Small rib/tendon?
08-08-2006-0: Unknonw weathered bone fragment.
08-06-2006-7 Anterior part of squamosal.
08-06-2006-1: Right squamosal (ventralmost portion.)
08-06-2006-8, 9: Cranial fragments.
MOR 2702 (field numbers as follows):
1: Femur.
4: Turtle Fragments?
5: Unknown long bone.
7: Unknown.
9: Partial premaxilla.
10: Parietal?
06-22-2007-2: Partial premaxilla.
06-22-2007-3: Partial premaxilla.
06-22-2007-6: Quadrate.
06-22-2007-8: Right jugal.
06-28-2007-11: Partial.
07-18-2007-8: Right squamosal.
08-06-2006-2B: PRemaxilla/maxilla fragmtn.
08-08-2006-2A: Premaxilla/maxilla?
08-09-2006-1: Nasal horn.
08-20-2007-12: Cranial fragments.
2702-7028-2006: Postorbital horn core.
2702-07-28-2006: Postorbital horn core.
2702-08-06-2006: Maxilla fragment.
_____________________________________________________________________________________
ILLIES & FOWLER, 2020
Locality: DDM SIte #154/Fedral Site ND 92-19, Custer National Forest, Bowam County?, Southwest North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
NDGS 1715: A partal skull and postcranium.
Note: With five fused caudal vertebrae putting a kink in the tail.
_____________________________________________________________________________________
LONGRICH, HORNER, ERICKSON & CURRIE, 2010
Locality: Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
YPM 53263: Squamosal. Note: Has toothmarks from a Tyrannosaurus rex.
_____________________________________________________________________________________
LULL, 1933
Locality: 8 miles southwest of Eastend, southern Saskatchewan Province, Canada.
Horizon: Lower Ravenscrag Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
NMC: Posterior part of skull.
Locality: East side of Rocky Creek, south of Wood Mountain plateau, Southern
Saskatchewan Province, Canada.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
NMC: Posterior two-thirds of skull.
Locality: Little Missouri Badlands, southern Billings County, North Dakota.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: 2 or more individuals being present.
Locality: Big Horn Basin, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Bones.
Locality: Along the eastern flank of the Big Horn Mountains, about 40 miles
south of Buffalo, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
YPM 1838:
Locality: Section 30, Tp 39N, R62W, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Tooth.
Locality: Hanna Basin, on the old Ferris Ranch, on North Platte River, eastward
to the top of the hill north of ‘Middle Ditch’ at the junction
with ‘Big Ditch’, Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragments.
Locality: Rio Grande Region, Elephant Butte, New Mexico.
Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material:
Number: Not given: A few fragmentary vertebrae.
_____________________________________________________________________________________
MATTHEWS, BRUSATTE, WILLIAMS & HENDERSON, 2009
Locality: "Homer site", approximately 40 km southwest of Ekalaka, Carter County,
Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Numbers: Not given: 130 bones and bone fragments of skull and skeletal elements.
_____________________________________________________________________________________
McINTOSH, 1981
Locality: Sheep Mountain, Carter County, Montana.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
CM 30744: Both rami of the mandible.
CM 30746: Teeth.
Locality: Synder Creek, Montana.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
CM 998: Fragments of skull, 14 vertebrae, ribs, right scapula, right coracoid,
right humerus, left ulna, part of femur, etc.
CM 1070: Nasal horn.
Locality: Lance Creek, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
CM 249: 2 horn cores.
CM 247, 248: 2 cervicals.
CM 253: Vertebra.
CM 241: Dorsal centrum.
CM 242: Metapodial.
CM 255, 257: 2 phalanges.
Locality: Lance Creek, Niobrara County, Wyoming.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
CM 1619: 2 horn cores.
Locality: Hell Creek, Montana.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
CM 1651: 2 horn cores.
Locality: C. A. Sheldon Ranch, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
CM 1618: Rostral bone, left squamosal, both rami of mandible, half dozen vertebrae,
sacrum, right scapula, coracoids, left humerus, radius, right ilium, pubes,
ischia, left femur, right tibia, etc.
_____________________________________________________________________________________
OSBORN, 1906/WALKER, 1964
Locality: Found with the type of Dynamosaurus imperiosus, Seven Mile Creek,
six miles north of Cheyenne River, Weston County, Wyoming.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragments of frill.
_____________________________________________________________________________________
OSBORN, 1933
Locality: 16 miles southeast of Lismas, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
AMNH 5033: 2 cervicals, 14 dorsals, and 7 caudal vertebrae, 28 ribs, a complete
pelvis and sacrum, a complete right hind limb and foot, and a complete left
femur.
AMNH 5045: A coossified series of cervical vertebrae.
AMNH 5039: Lower jaw.
Note: Composite skeleton of the Triceratops elatus (skull is Triceratops
sternbergii,
FORSTER Thesis, nomen nudum) at the American Museum of Natural History.
_____________________________________________________________________________________
OSBORN, 1933
Locality: South of Seminoe Reservoir, Carbon County, Wyoming.
Horizon: Ferris Formation.
Biostratigraphy:
Age: Lancian age, uppermost Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: South of the Seminoe Mountains, 40 miles below Fort Steele on the
North Platte River, Carbon County, Wyoming.
Horizon: Medicine Bow Formation.
Biostratigraphy:
Age: Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late
Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
OTT, 1998
Locality: Carter County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragmentary skeleton indicating scavenging by a theropod.
_____________________________________________________________________________________
RIGBY, JR. NEWMAN, SMIT, VAN DER KAASS, SLOAN & RIGBY, 1987
Locality: McCone County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Shed tooth.
_____________________________________________________________________________________
RUSSELL, 1930
Locality: Colorado.
Horizon: Arapahoe Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
SAKAGAMI & KAWABE, 2020
Locality: Ziebach, Ziebach County, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
FPDM-V-9677: Braincase, nasal, premaxillae, maxillae, rostrum, postorbital, jugal, quadate, parietal and squamosal.
Locality: Marmarth, Slope County, North Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
FPDM-V-9775: Isolated braincase.
_____________________________________________________________________________________
SCANNELLA & FOWLER, 2014
Locality: HC-064, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2946: Partial parietal adn squamosal.
Locality: HC-069, Wankel T-Rex, northeastern Montana.
Horizon: Upper Unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 598: Epinsal.
MOR 599: Partial maxilla.
MOR 669: Partial braincase.
MOR 670: Partial braincase.
Locality: HC-085, Maloney Hill N, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 652: Juvenile squamosal.
Locality: HC-108, Irv's Triceratops, northeastern Montana.
Horizon: ?Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 699: Skull, lacking nasal horn and associated with postcrania including caudal vertebrae, dorsal vertebrae, pubis, ribs (skull currently on display at Makoshika State Park Vistor Center).
Locality: HC-109, Robert's Microsite, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2583: Frill epiossification.
Locality: HC-135, MORT, northeastern Montana.
Horizon: Upper unite (Upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 004: Articualted skull, distal postorbital horn cores reconstructed.
MOR 2584: Epijugla.
MOR 2585: Epijugal.
OR 2586: Epiossification.
Locality: HC-114, Brownie Butte Trike, northeastern Montana.
Horizon: Upper unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3057: Postorbital horn core.
Locality: HC-172, Bite Trike, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 799: Sacrum.
Locality: HC-177, Mickey's Trike, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 965: Partial skull including nasal horn, sections of parietal adn squamosal margin and jugal.
Locality: HC-188, TORO 1, northeastern Montana.
Horizon: Lower to lowest middle unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 981: Articulated skull missing left jugal and left half of frill.
Locality: HC-191, 2/4/Day Site, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 987: Partial braincase.
Locality: HC-192, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 966: Nasal horn.
Locality: HC-193, Pompey, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 989: Epinasal and partial rostral.
Locality: HC-196, Engdahl Trike, northeastern Montana.
Horizon: Upper Unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 622: Partial skull adn associted postcranial material: scapula and humerus prepared.
Locality: HC-199, Trumblo Ranch, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 539: partial disarticulated juvenile skull including postorbital horn cores, and right exoccipital.
Locality: HC-209, Johnston Lease, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1053: Baby postrobital horn core.
Locality: HC-210, Howell Lease, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1059: Basioccipital and occipital condyle.
Locality: HC-235, 'Fisk", northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1098: Postrobita lhorn core.
Locality: HC-249, Celestial Clam Bed, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1109: Fragmentry skeleton including epijugal, vertebra and tooth.
Locality: HC-250, MORT, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1110: Disarticulated skull.
Locality: HC-256, Getaway Trike, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1120: Disarticulated skull.
Locality: HC-258, TORO II, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1122: Articulated skull.
Locality: HC-265, Coyote Basin, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1129: Partial disarticulated skull including postorbital horn core, occipital condyle, and predentary.
Locality: HC-267, Larry's BO, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1133: Basal braincase.
Locality: HC-275, Weird Microsite, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2582: Frill epiossifications.
Locality: HC-376, Baker Trike, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1604: Articulated skull and syncervical.
Locality: HC-280, "F-Rex", northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2728: Partial right nasal.
Locality: HC-283, #73 site, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1157: Braincase.
Locality: HC-285, Heaven Site, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1160: Associted forelimb elements.
Locality: HC-287, Bandana Site, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1162: Associated skeletal elements.
Locality: HC-290, DK Site, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2589: Juvenile postorbital horn core.
Locality: HC-293, Celeste's Mag. Micro Site, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1167: Juvenile epinsal.
Locality: HC-300, Allard#4, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1171: Braincase.
Locality: HC-301, Triceratosp sacrum site, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1174: Large sacrum, ischia and pubis.
MOR 1612: Humerus.
Locality: HC-308, Mark's Trike, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1186: Partial skull and associated postcrania.
Locality: HC-310, Tricertopolis, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1188: Dorsal vertebrae.
Locality: HC-389, Marge's Trike, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 1629: Tibia.
Locality: HC-392, CSTrike2, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2551: Partial skull including nasal horn, nasals, postrobital horn parieal and associated post crania.
Locality: HC-393, BOSH, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2552: Partial skull incluing postorbital horn, partial parietal, squamosal, and firll epiossifications.
Locality: HC-426, Mark's Scavenged Trike, northeastern Montana.
Horizon: Middle unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2570: Nasal horn, epijugal pieces of maxilla and frill.
Locality: HC-428, Mark's Trike Generation, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2572: Juvenile squamosal.
Locality: HC-430, Quittin' Time, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2574: Bonebed.
Locality: HC-431, Wagon Coulee North, northeastern Montana.
Horizon: ?Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2575: Nasal horn.
Locality: HC-432, Snap Creek, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2576: Nasal horn.
Locality: HC-435, "Twitchel North," northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2579: Juvenile postorbital horn core.
Locality: HC-438, 6-12-00-CCh Trike, northeastern Montana.
Horizon: ?Middle unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2587: Right nasal.
Locality: HC-439,7-4-00-CCH Microsite, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2588: Frill epiossifications.
Locality: HC-440, JRH7-2-05-2, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2590: Partial disarticualted premaxilla.
Locality: HC-441, Thedford site, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2593: Quadrate.
Locality: HC-442, Bf9, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2594: Frill epiossifications.
Locality: HC-448, "Sand Creek, Dawson," northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2704: Large partial jugal and epijugal.
Locality: HC-520, Joes' Half Day Trike, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2923: Articualted skull missing squamosals and lower jaw.
Locality: HC-521, Lon's Trike, northeastern Montana.
Horizon: Upper unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2924: Disarticualed skull including nasal horn, squamosal, nasal, premaxilla, partial parietal adn associated postcrania including huemrus and ulna.
Locality: HC-525, Trike Basin, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2827: Postorbital horn and squamosal.
MOR 2928: Squamosal and dentary.
MOR 2929: Juvenile squamosal.
Locality: HC-528, Lazy Bones, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2936: Partial disarticulated skull including squamosals, nasal honr, maxilla, and braincase.
Locality: HC-529, Prospero, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2937: Partial dentary, frill fragment, and other material.
Locality: HC-530, Doldrums, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2942: Squamosal.
Locality: HC-531, Lauren's Trike, northeastern Montana.
Horizon: Upper unit (Upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2938: Partial skull including nasal horn, maxilla, dentary, partial parietal.
Locality: HC-532, Ducky tail, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 6648: Juvenile Tricertops parietal and squamosa found among Edmontosaurus material.
Locality: HC-535, Nosy Nasal, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2941: Nasal horn and ungual.
Locality: HC-539, Too Close, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2942: Dentary.
Locality: HC-541, JDTrike 14, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2950: Partial skull including braincase, partial squamosal and parietal.
Locality: HC-543, TriSarah Tops, northeastern Montana.
Horizon: Upper uint, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2980: Squamosal.
Locality: HC-544, DF Juvie Trike3, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2951: Nearly complete disarticulated skull and associted postcrania including humerus, femur, ilium, vertebrae and ribs.
Locality: HC-545, Homer's Nose, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2952: Patial skull including epinasal, postorbital horn core and frill fragment.
Locality: HC-500, DF Juvie-Horncore, northeastern Montana.
Horizon: Upper unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2958: Juvenile postorbital horn core.
Locality: HC-551, Great Googoly Moogly, northeastern Montana.
Horizon: ?Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2959: Firll fragments including frill epiossifications, occipital condyle, and syncervical.
Locality: HC-563, Jack's 2008 Parietal, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2969: Juvenile parietal.
Locality: HC-564, Crazy Trike, northeastern Montana.
Horizon: Upper part (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2971: Partial skull including premaxilla, nasal horn, rosral, maxilla and frill.
Locality: HC-565, Supernasal, northeastern Montana.
Horizon: Upper unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2972: Partial skull including nasal honr, partial squamosal and braincase.
Locality: HC-566, Legs, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2974: Partial tibia.
Locality: HC-567, More Frill, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2975: Partial skull including postorbital horn core and squamosals.
Locality: HC-570, Greene Trike, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2978: Articulated skull with syncervical (missing maxillae, premaxillae and lower jaw).
Locality: HC-571, Seth's Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2979: Partial skull, including postorbital horns, maxilla, partial premaxilla (missing much of frill and lower jaws).
Locality: HC-573, Three Amigos, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2982:Partial skull including postorbital horn, nasal and nasal horn, dentary, parietal midline, patial squamosal and associated postcrania including vertebrae and femur.
Locality: HC-575, 2 Big, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2984: Squamosal.
Locality: HC-576, 6 O'Clock Trike, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2985: Squamosal, partial parietal, and associated postcrania.
Locality: HC-579, Spike the Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2988: Postorbital horn core.
Locality: HC-622, Toothburg, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2991: Includs partial frill and occipital condyle.
Locality: HC-623, Halfway Hill, northeastern Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2992: Partial squamosal.
Locality: HC-627, Situ but Sad, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2999: Partial skull including parietal, squamosal, braincase and postorbital horns, nasal, maxilla and dentary.
Locality: HC-628, Ashes Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3000: Postorbital horn core, parietl, partial squamosal, dentary and scapula.
Locality: HC-633, The Horn Resounding, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3004: Skull and associaed postcrania.
Locality: HC-634, Antsy Trike, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3005: Partial disarticualted skull including parietal and nasal.
Locality: HC-635, Warwicks's Horn, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3006: Postoribtal horn core.
Locality: HC-636, American Beauty, northeastern Montana.
Horizon: Upper unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3008: Nasal horn.
Locality: HC-638, The Golden Goose, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3010: Postorbital horn core, nasal horn and dentary.
Locality: HC-639, Anky Breaky Heart, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3011: Partial skull including epinasal adn parietal.
Locality: HC-642, Trash Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3015: Squamosal and parital braincase.
Locality: HC-643, Deveils Horns, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3016: Postorbital horn core and skull fragments.
Locality: HC-668, Yoshi's Trike, northeastern Montana.
Horizon: Middle unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3027: Disarticulated skull including nasal horn, squamosal, nasal, premaxilla, partial parietal and associted potcrania.
After SCANNELLA, FOWLER, GOODWIN & HORNER, 2014.
Locality: HC-671, Jared's Trike, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3029: Parietal.
Locality: HC-672, JD Trike 15, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3030: Prital postorbital frill of a juvenile.
Locality: HC-682, Cliffhanger, northeastern Montana.
Horizon: Middle unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3045: Prietal, squamosal, and other material.
After SCANNELLA, FOWLER, GOODWIN & HORNER, 2014.
Locality: HC-692, Joey's Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3041: Partial skull including squamosals and braincase.
Locality: HC-693, Ed's Trike, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3042: Dentary.
Locality: HC-694, GPS Maniac, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3043: Squamosal.
Locality: HC-696, Trikey Town 2, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3046: Parietal and dentary.
Locality: HC-697, Got the Horn, northeastern Montana.
Horizon: Upper unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3047: Postorbital horn.
Locality: HC-698, Wednesday's Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3048: Nasal horn, occipital ocndyle, adn otehr cranial material.
Locality: HC-699, Present, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3049: Nasal horn.
Locality: HC-700, PVU Trike, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3053: Associated material including postorbital horn core.
Locality: HC-702, JD Trike 12, northeastern Montana.
Horizon: Upper unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3056: Juvenile squamosal and postorbital horn core.
Locality: HC-704, JDExTrike 2, northeastern Montana.
Horizon: Middle unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3058: Partial horn an djugla.
Locality: HC-716, Litle Horny Devil, northeastern Montana.
Horizon: Middle Unit (upper part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3064: Brown horn, partial squamosal, quadrate, epiossifications, jugals, and other cranial elements.
Locality: HC-898, Lost and Found, northeastern Montana.
Horizon: Middle unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 7037: Squamosal.
Locality: HC-1022, H & M Trike, northeastern Montana.
Horizon: Lower unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 335: Parietal.
Locality: HC-1023, Heck's Horn, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3059: Nasal horn.
Locality: HC-1026, Brown nose, northeastern Montana.
Horizon: Middle unit (lower part), Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 3055: Nasal horn.
Locality: HC-1027, TrikNAs, northeastern Montana.
Horizon: Upper unit, Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 2965: Epinsal.
_____________________________________________________________________________________
SMITH, 1998
Locality: North of Glenrock, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Tate Museum: Skull 70% complete
_____________________________________________________________________________________
SNYDER, McLAIN, WOOD & CHADWICK, 2020
Locality: Hanson Ranch (HR), northern Niobrara County, Eastern Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: 4 skeletal elements.
_____________________________________________________________________________________
STEIN, 2021
Locality: Tooth Draw Deposit, Butte County, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
TD-13-004, TDW-14-021, TD-13-092: Epocipitals.
TD-15-233: juvenile dentary.
Number: Not given: 186: Vertebrae, rib sections, etatarslas, metacarpals, unguals, phalanges and some rare pelvic bones.
_____________________________________________________________________________________
STERNBERG, 1924
Locality: Badlands in Sec. 15, T1, R5W, 3rd principal meridian, Rocky Creek,
Saskatchewan Province, Canada.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
STERNBERG, 1949
Locality: Morgan Creek, east branch of Rocky Creek, Saskatchewan Province,
Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
NMC 8598: Nasal horn core.
Locality: North side of Frenchman River east of Eastend, Saskatchewan Province,
Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
NMC 8864: Nasal horn core.
_____________________________________________________________________________________
TANKE & FARKE, 2006
Locality: Gateway Trike, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
MOR 965: Skull, including frill, quadrate, jugal and nasal horn core.
Note: POL, left side.
MOR 1120: Skull.
Note: Irregular depression on the left jugal.
Locality: Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
RTMP 84.39.12: Fragmentary skull.
Note: Ovate depression, left side of nasal horn core.
_____________________________________________________________________________________
TOEPELMAN, 1926
Locality: North of Briggsdale, Weld County, Colorado.
Horizon: Laramie Formation.
Biostratigraphy:
Age: Lancian Age, upper Maastrichtian Stage, uppermost Senonian Subepoch,
Upper Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
TOKARYK, 1990
Locality: Killdeer Badlands, Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SMNH: Left supraorbital horncore of a juvenile.
Note: May not be Triceratops.
_____________________________________________________________________________________
TOKARYK, 1997
Locality: Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
P 2606.38: Tooth.
_____________________________________________________________________________________
TOKARYK, 2002, TOKARYK & BYRANT, 2004
Locality: SMNH Locality 72F07-0022, in the Frenchman River valley, 215 miles
southwest of Regina, near the North Dakota Border, Saskatchewan Province, Canada.
Horizon: Frenchman Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Note: 28.3 m below the K-T boundary.
Material:
SMNH PH 63.9: Humerus of an adult.
SMNH P.2691.1: Humerus of a juvenile.
= cf. Triceratops sp SMNH P2523.110-115, P2523.138, P2523.142, P2523.144,
P2523.235, P2689.11, P2989.11, P2943.4, P2943.6-8, P2689.3, P2689.4, P2691.23:
Teeth.
_____________________________________________________________________________________
TRIEBOLD, 1997
Locality: Sandy Site, Harding County, South Dakota.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
_____________________________________________________________________________________
WHITMORE, 1988
Locality: SDSM Locality V851, Zerbst Locality, east of the Cheyenne River,
Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
SDSM 15154: More than 1000 teeth.
SDSM 15122: 1 juvenile predentary.
Locality: SDSM Locality V852, Hanson Locality, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SDSM 15153: 263 teeth.
Locality: SDSM Locality V853, Leonard’s Lizard Site, Niobrara County,
Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SDSM 15152: 96 teeth.
Locality: SDSM Locality V685, Greasewood Creek Locality, northern side of the
south fork of the Greasewood Creek, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SDSM 12708: 21 teeth.
SDSM 15151: 16 teeth.
Locality: SDSM Locality V851A, Lower Zerbst Locality, Niobrara County, Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
SDSM 15150: 17 teeth.
_____________________________________________________________________________________
WINCHESTER, JARES, RUSSELL, LLOYD, & PARKS, 1916
Locality: NW 1/4, Sec 2, T18N, R5E, South Dakota.
Horizon: Early Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Fragmentary skull.
Locality: SW 1/4, sec 26, T17N, R3E, South Dakota.
Horizon: Early Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given;
Locality: Center of sec 36, T17N, R3E, South Dakota.
Horizon: Early Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch,
Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: