DANIS, 1986
Locality: Dinosaur Provincial Park, Newell County, Alberta Province, Canada.
Horizon: Dinosaur Park Formation, upper Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
RTMP 79.8.1:
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Saurornithoides sp ESTES, 1964
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-5003, S 1/2, Sec. 20, T37N, R64W, Lance Creek, Powder River Basin, Niobrara County, 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.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Teeth.
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EVANS, LAM, MADDIN & CONACHER, 2003
Locality: Prehistoric Park Quarry, Wheatland County, 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:
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FIORILLO, 1989
Locality: Antelope Head Quarry, Wheatland County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Careless Creek Quarry, Wheatland County, Montana.
Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
Locality: Top Cat Quarry, Golden Valley County, Montana.Horizon: Judith River Formation.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
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GANGLOFF, 1998
Locality: North Slope, Alaska.
Horizon:
Biostratigraphy:
Age: Late Cretaceous.
Material:
Number: Not given: Teeth and skull fragments.
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HERNANDEZ-RIVERA, 1997
Locality: Near the village of La Bocana, Baja California, Mexico.
Horizon: “EL Gallo Formation”, Middle one-third of the Upper Campanian.
Biostratigraphy:
Age: Campanian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
HILTON, 2003
LACM to Mexico 42637/HJG 689, 42675/HJG 696: Teeth.
Note: Saurornitholestes.
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HORNER, 1988
Locality: Egg Mountain, 12 miles west of Choteau, on the James and John Peebles Ranch, Willow Creek Anticline, Teton County, Montana.
Horizon: Two Medicine Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: Eggs, and skeletal remains.
Locality: Upper Maisaura nesting Ground.
Horizon: Two Medicine Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: Skeletal remains.
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HORNER, 1997
Note: All the Orodromeus eggs have not been proven to belong to Troodon formosus.
= Orodromeus makelai HORNER & WEISHAMPEL, 1988
Locality: Egg Mountain site, Willow Creek Anticline, Teton County, Montana.
Horizon: Two Medicine Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Referred material:
MOR 246: Clutch of 19 eggs with embryos.
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= cf. Troodon sp KIRKLAND, BRITT, BURGE, CARPENTER, CIFELLI, DECOURTEN,
EATON, HASIOTIS & LAWTON, 1997
Locality: West side of the San Rafael Swell, south of Mussentuchit Wash, SW ¼, NW ¼, SE ¼, Sec. 4, T25S, R6E on the Willow Springs, Utah.
Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.
Biostratigraphy:
Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.
Material:
Number: Not given:
= cf. Troodon sp
Locality: Utah.
Horizon: Dakota Formation.
Biostratigraphy:
Age: Upper Cenomanian, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.
Material:
Number: Not given:
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LANGSTON, 1975
Locality: Scabby Butte Site 2, on the westerly escarpment of SE 1/4, SE 1/4, Sec. 19, Lethbridge County, Southern Alberta Province, Canada.
Horizon: St. Mary River Formation.
Biostratigraphy:
Age: Edmontonian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
NMC 10649: Incomplete tooth.
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cf. Troodon LANGSTON, STANDHARDT & STEVENS, 1988
Locality: Big Bend National Park, Brewster County, Texas.
Horizon: Lower Javelina Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
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LARSON, BRINKMAN & BELL, 2010
Locality: Albertosaurus bonebed, Alberta Province, Canada.
Horizon: Horseshoe Canyon Formation, Edmonton Group.
Biostratigraphy:
Age: Early Maastrichtian Stage, Late Senonian Subepoch, Late Gulf Epoch, Late Cretaceous.
Material:
RTMP 1998.063.0043, 1999.050.0114, 1999.050.0115,2000.045.0010, 2000.045.0024, 2000.045.0041, 2000.045.0090, 2000.045.0091, 2001.045.0080, 2001.045.0081, 2002.045.0048, 2003.045.0057, 2003.045.0058, 2003.034.0001: Teeth.
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NELMS, 1992, FIORILLO & GANGLOFF, 2000
Locality: Kogosukruk Tongue, near Ocean Point, North Slope, Alaska.
Horizon Prince Creek Formation.
Biostratigraphy:
Age: Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.
Material:
Number: Not given: Numerous teeth.
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= cf. Troodon PARRISH, 1999
Locality: Kaiparowits Plateau, Utah.
Horizon: Wahweap Formation.
Biostratigraphy:
Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
OMNH 21988, 24237: Teeth.
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RAMIREZ-VELASCO, & HERNANDEZ-RIVERA, 2015
(Aguillon-Martinez, 2010)
Locality: La Parrita, General Cepeda, Coahulia State, Mexico.
Horizon: Cerro del Pueblo Formation.
Biostratigraphy:
Age: Late Campanian Stage, middle Senonian subepoch, upper Gulf Epoch, Late Cretaceous.
Material:
SEPCP 9/778: Tooth.
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ROWE, CIFELLI, LEHMAN & WEIL, 1992
Locality: Terlingula local fauna, OMNH V58; TMM 43057, lies 8 km NNE of Study Butte, Brewster County, Texas.
Horizon: Upper Aguja Formation.
Biostratigraphy:
Age: Edmontonian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
TMM 43057-323: Tooth.
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RYAN, 1997
Locality: Republic of Kazakhstan.
Horizon: Lower Dabrazin Formation.
Biostratigraphy:
Age: Middle Campanian Stage, Senonian Subeoch, Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
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RYAN, 2003
Locality: Bone bed 138 (BB 138), Dinosaur Provincal Park, approximately 50 km from Brooks, Alberta Province, Canada and Montana.
Horizon: Lowermost Oldman Formation, middle Judith River Group.
Biostratigraphy:
Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
RTMP 138.319: Tooth.
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RYAN, CURRIE, GARDNER & LAVIGNE, 1997, RYAN, CURRIE, GARDNER, VICKARYOUS & LAVIGNE,
(1998) 2000
Locality: RTMP locality 2000 (L2000), Horse Thief Canyon along the Red Deer River Valley, Drumheller Valley badlands, Wheatland County, South-central Alberta Province, Canada.
Horizon: Horseshoe Canyon Formation, Edmonton Group.
Biostratigraphy:
Age: Edmontonian age, lower Maastrichtian Stage, Upper Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
RTMP 96.29.29: Posterior maxillary tooth.
RTMP 97.39.3: Posterior dentary tooth.
RTMP 97.39.7: Posterior premaxillary or anterior maxillary tooth.
RTMP 97.39.5: Dentary tooth.
Number: Not given: 9 more premaxillary teeth, 39 maxillary teeth, and 14
dentary teeth.
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SANKEY, 1997
Locality: Near Talley Mountain, Big Bend National Park, Texas.
Horizon: Upper Aguja Formation.
Biostratigraphy:
Age: Edmontonian age, Upper Campanian Stage- Lower Maastrichtian Stage, Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
Number: Not given:
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SANKEY, 2008
Locality: UCMP V-5616, Altman Blowout, this large blowout, site of the UCMP field-party camps from 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.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 214059, 186886: Teeth.
Locality: UCMP V-5620, Lull Quarry, near the head of a tributary of Buck Creek, Powder River Basin, Niobrara County (Formerly Converse County), Wyoming.
Horizon: Lance Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 187058, 187059, 187060, 187061, 187062, 187063 187065, 187066, 187067, 187068, 187069, 187071, 187072, 187073, 187074, 187075, 187076, 187078: Teeth.
Locality: UCMP Locality V-72208, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 187057, 119919: Teeth.
Locality: UCMP V73087, Flat Creek 5, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 214060, 186885: Teeth.
Locality: UCMP V74116, Baldy Butte SW-Top Level, Garfield County, Montana.
Horizon: Hell Creek Formation.
Biostratigraphy:
Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UCMP 128845: Tooth.
The following UCMP localities are either in Montana or Wyoming, and either Lance or Hell Creek Formations.
UCMP V73102: UCMP 128787: Teeth.
UCMP 75172: UCMP 214061, 214062, 186868: Teeth.
UCMP V84130: UCMP 186904: Tooth.
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= cf. Troodon 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-16-077: Pes ungual.
TD-11-065: Tooth.
Number: Not given: Teeth, several gracile metatarsals and phalanges.
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= Saurornithoides sp STENERSON & O’CONNER, 1994
Locality: Northwestern 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: Teeth.
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TORICES, BUNSTON, KRAICHY, & CURRIE, 2014
Locality: Danek Bonebed (TMP locality L2379), southern bank of Whitemud Creek, south of Edmonton, Alberta Province, Canada.
Horizon: Horseshoe Canyon Formation, Edmonton Group.
Biostratigraphy:
Age: Edmontonian age, lower Maastrichtian Stage, Upper Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.
Material:
UALVP 55489: Isolated tooth.
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= cf. Troodon sp TORRES-RODRIGUEZ, MONTELLANO-BALLESTROS, HERNANDEZ-RIVERA, BENAMMI, 2010
Locality: Rancho "Las Garzas", Municipio de Ocampo, Coahuila State, Mexico.
Horizon: Olmos Formation.
Biostratigraphy:
Age: Campanian-Maastrichtian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
IGM 6204: Premaxillary tooth.
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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:
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= Orodromeus makelai VARRICHIO & JACKSON, 1995
Locality: Western Montana.
Horizon: Two Medicine Formation.
Biostratigraphy:
Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.
Material:
Number: Not given: A clutch of 24 eggs in a nest.
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WHITEBONE, CURRIE & FUNSTON, 2018
Locality: Morrin microsite Locality, southern 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: Teeth, fragmentary remains and eggshells.