Genus: Centrosaurus LAMBE, 1904
Etymology: Greek, knetron, “spur, sharp point," and Greek, sauros, “lizard”: “spur (crest) lizard”.
= Centrasaurus RUSSELL, 1966 (sic)
= Centrosaurssus RYAN & RUSSELL, 2005 (sic)
= Eucenrosaurus NESOV, 1995 (sic)
= Eucentrosaurus CHURE & McINTOSH, 1989
Etymology: Greek, eu-, “good, true," and Centrosaurus: “True Centrosaurus”.
= Monoclonius subgenus Centrosaurus LULL, 1933

Species: ? recurvicornis (COPE, 1889)) (nomen dubium)
Etymology: Recurve horn.
= Monoclonius recurvicornis COPE, 1889 (nomen dubium)
= Ceratops recurvicornis (COPE, 1889) HATCHER vide STANTON & HATCHER, 1905 (nomen dubium)
= Centrosaurus recurvatus LANGSTON, 1975 (sic)
= Eucentrosaurus ? recurvicornis (COPE, 1889) CHURE & McINTOSH, 1989 (nomen dubium)
= Chasmosaurus recurvicornis (COPE, 1889) OLSHEVSKY, 2000 (nomen dubium)

Holotype: AMNH 3999

Locality: On the north side of the Missouri River nearly opposite the mouth of Dog Creek, Montana.

Horizon: Near the base of the Judith River Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material: Portions of skull, including frontal and nasal horn cores.
Note: Similar to a new ceratopid with a down curved nose horn?


_____________________________________________________________________________________

Species: apertus LAMBE, 1904
Etymology: Latin, apertio, "an opening," (feminine); in reference to the large ‘holes’ in the frill.
= Monoclonius apertus (LAMBE, 1904)
= Monoclonius subgenus Centrosaurus apertus (LAMBE, 1904) LULL, 1933
= Eucentrosaurus apertus (LAMBE, 1904) CHURE & McINTOSH, 1989
= Monoclonius dawsoni LAMBE, 1902 (referred specimen)

Holotype: CMN 1173 & CMN (NMC) 971

Locality: Dinosaur Provincial Park, a short distance below the mouth of Berry Creek, west side of Red Deer River, Steveville, 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: Parietal crest missing right side.



Referred specimen

CHIBA, RYAN, BRAMAN, EBERTH, SCOTT, BROWN, KOBAYASHI, & EVANS, 2015

Locality: McPheeters bonebed, south of Manyberries, Forty Mile County, Southern Alberta Province, Canada.

Horizon: Oldman Formation, middle Judith River Group.

Biostratigraphy:

Age:  Judithian age, Midle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

 

Material:

RTMP 2009.039.0146: Left squamosal.

RTMP 2012.037.0021: Left parietal P2 process.

RTMP 2012.037.0197: Right parietal P2 and P3.

RTMP 2009.039.0249: Fused nasals.

RTMP 2009.039.0281: Unmodifed adult postorbital horncores.

RTMP 2009.039.0365: Right nasal.

Bonebed: Numbers: not given.

 

CURRIE & RUSSELL, 2005

Locality: BB30, 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: Frgmentary skulls and fragmentary skeletons.

TANKE, 2007

RTMP 95.75.64: Complete subadult parietal.

RTMP 2006.25.1: Fragmentary skull.

 

Locality: BB41, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB41A, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB41AA, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB91, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB91A, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB91B, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB91C, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB162, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB166, 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:

Number: Not given: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB168, 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: Frgmentary skulls and fragmentary skeletons.

 

 

Locality: BB180, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: BB188, 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: Frgmentary skulls and fragmentary skeletons.

 

Locality: Quarry 042, 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:

USNM 8897: Skull.

 

Locality: Quarry 148, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 80.54.1: Skull.

 

Locality: BB061, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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: Skulls and skeletons.

 

Locality: BB061A, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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: Skulls and skeletons.

 

Locality: BB062, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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: Skulls and skeletons.

 

Locality: BB128, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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: Skulls and skeletons.

 

 

Locality: BB206, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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: Skulls and skeletons.

 

DANIS, 1986

Locality: Quarry 001, 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:

ROM 767 (formerly ROM 5419): Skull, thyrohyals, 17 vertebrae, ribs, scapulae, coracoids, sternal plates, humeri, left radius, ulna, and manus.

 

Locality: Quarry 022, 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:

ROM uncatalogued: Skull.

 

Locality: Quarry 033, 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:

ROM (now at Museo de la Plata, Argentina): 79-XI-23-2: Skull.

 

Locality: Quarry 078, 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:

BMNH R.4859: Skull.

 

Locality: Quarry 081, 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:

CMN (NMC) 12229: Skull and skeleton.

 

Locality: Quarry 102, 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:

CMN (NMC) 8798: Skull.

 

Locality: Quarry 136, 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:

UA 16248: Skull and skeleton.

UA 11735: Skull.
Note : Paleopathology, left squamosal has a possible healing puncture wound (TYSON, 1977).
Note: From Quarry 135 (TANKE & ROTHSCHILD, 2002).

 

Locality: Quarry 143, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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: 79.11: Skull and skeleton.

RTMP 79.11.81: Left postorbital of an adult.

RTMP 78.11.57: Left postorbital of a juvenile.

RTMP 82.17.79: Posterior parietal.

RTMP 82.18.131: Subadult left postorbital.

EBERTH, BRINKMAN & BARKAS, 2010

Locality: Centrosaur skull and Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-03: Bone bed.

 

Locality: Centrosaurus Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-04: Bone bed.

 

Locality: Centrosaurus nasal horncore Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-05: Nasal horn core.

 

Locality: Jason Lavigne’s Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-06: Bone bed.


Locality: Microsite Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-07: Bone bed.

 

Locality: Southeasternmost Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-08: Bone bed.

 

Locality: Westside 1 Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-10: Bone bed.

 

Locality: Westside 2 Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-11: Bone bed.

 

Locality: Southwesternmost Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-13: Bone bed.

 

Locality: Low-Density ceratopsian Bone Bed 1, South Saskatchewan River, near Hilda, 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:

Field # H97-16: Bone bed.

 

Locality: Southeast of Langston Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-17: Bone bed.


Locality: Ceratopsian tail Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-19: Bone bed.

Locality: Low-Density ceratopsian Bone Bed 2, South Saskatchewan River, near Hilda, 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:

Material:

Field # H97-20: Bone bed.


Locality: Aquatic microsite, South Saskatchewan River, near Hilda, 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:

Field # H97-09: Bone bed.

 

Locality: Mesovertebrate site, South Saskatchewan River, near Hilda, 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:

Field # H97-12: Bone bed.

 

Locality: Langston’s Ceratopsian Bone Bed, South Saskatchewan River, near Hilda, 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:

Field # H97-02: Bone bed.

 

EKHTIARI, CHIBA, POPOVIC, CROWTHER, WOHL, WONG, TANKE, DUFAULT, GEEN, PARASU, CROWTHER & EVANS, 2020

Locality: Centrosaurus bonebed, 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 1989.018.0108: Fibula with osteosarcoma.

RTMP 2014.050.0192: Fibula.

 

McINTOSH, 1981

Locality: Quarry 109, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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:

CM 11374: Skull.

Note: Obtained from the Geological Survey of Canada in 1925, and later transferred to Museo de La Plata, Argentina (MDLP 79/XI/23/2).

 

LULL, 1933

Locality: Dinosaur Provincial Park, 2 miles south of Steveville, on the west side of the Red Deer River, 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:

ROM: Skull.

 


Locality: Dinosaur Provincial Park, At the lower end of Dead Lodge Canyon, 15 miles east of Steveville, on the west side of the Red Deer River, 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:

CMN (NMC) 348: Skull with lower jaws.

 

Locality: Quarry 083, Dinosaur Provincial Park, Denhart Ferry, about 15 miles below Steveville, on the west side of the Red Deer River, 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:

CMN (NMC) 347: Skull.

 


Locality: Dinosaur Provincial Park, 1 mile east of Denhart Ferry, Red Deer River, 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:

NMC: Skull less nasals, maxillae and most of face.

 

Locality: Dinosaur Provincial Park, Section 9, Tp21, R11, Red Deer River, 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:

ROM 4519: Skull and part of skeleton.

ROM: Frill.

 

Locality: Quarry unknown, Dinosaur Provincial Park, “East Fork” of Sand Creek, about 12 miles below Steveville, Red Deer River, 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:

AMNH 5377: Skull and jaws.


PARKS, 1921

Locality: Dinosaur Provincial Park, 1 mile south of the Red Deer River and 2 1/2 miles above Happy Jack Ferry, at an elevation of 116 feet (aneroid) above the water, 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:

ROM: Skull and dentary, 17 vertebrae, scapula, coracoid, humeri, left radius, left ulna, left manus, both sternal bones.
Note: Paleopathology, fractured and healed lateral parietal.

 

RYAN, 2003

Locality: BB 168, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 168.A1-6, A2-12, A3-8: Bone fragments.

RTMP 168.A1-30: Dentary.

RTMP 168.A4: Dentary fragment.

RTMP 168.B1-1: Dentary, cp.

RTMP 168.A1-1: Left femur.

RTMP 168. B2-11: Femur.

RTMP 168.A4-5: Fibula.

RTMP 168.A3-21, A1-32, B2-12: Frill fragments.

RTMP 168.A3-22: Right humerus.

RTMP 168.A3-6: Left humerus.

RTMP 168.A2-11, A3-25: Ischia fragment.

RTMP 168.A4-10: Left ischium shaft.

RTMP 168.B2-3: Ischium?

RTMP 168.A1-10, B2-8: Jugal fragments.

RTMP 168.A2-18: Left jugal.

RTMP 168.A4-1, A4-4, A3-15: Limb elements.

RTMP 168.B2-1: Limb shaft.

RTMP 168.A1-11: Metacarpal.

RTMP 168.A1-23, A2-15: Nasal fragments.

RTMP 168.A2-5, A2-17, A1-41, B2-2, A1-38: Parietals.

RTMP 168.A2-9, A4-8: Parietal bars.

RTMP 168.A1-17, A1-22, A2-22, A3-12, A4-11, A4-12, A4-11, A4-SUR, C2-1: Parietal fragments.

RTMP 168.A2-24: Postorbital fragments.

RTMP 168.A2-20: Predentary.

RTMP 168.A3-2, C3-1: Premaxilla fragments.

RTMP 168.A1-44: Quadrate.

RTMP 168.A3-5: Radius.

RTMP 168.A1-7, A2-6, A3-17, A4-2, B2-10: Ribs.

RTMP 168.A1-3, A1-12, A1-24, A1-28, A2-15, A2-29, B2-5, B3-4: Rib fragments.

RTMP 168.A1-4: Left scapula.

RTMP 168.B2-2: Right? Scapula.

RTMP 168.B2-7, A4-7, A2-23: Scapula fragments.

RTMP 168.A2-14, A3-10, A3-16, A4-6, A1-39, B2-18, B3-1, C3-2, A1-5: Skull fragments.

RTMP168.A2-1, A2-13, A3-1, A3-7, A2-8, A3-11, A3-23: Squamosals.

RTMP 168.A2-2, A2-4: Tibiae.

RTMP 168.A2-27: Tibia fragment.

RTMP 168.C2-3: Distal tibia?

RTMP 168.A1-15, A1-34: Teeth.

RTMP 168.A4-3: Ulna?

RTMP 168.B3-6, A3-14: Vertebrae.

RTMP 168.2B1-7: Angular.

RTMP 168.2B2-13: Femur.

RTMP 168.2A3-2: Humerus.

RTMP 168.2A1-1, 2A3-3: Ilia.

RTMP 168.2B1-11: Ischium.

RTMP 168.2B3-3: Jugal fragment.

RTMP 168.2B1-15: Limb element.

RTMP 168.2B1-27: Parietal.

RTMP 168.9005:Postorbital.

RTMP 168.2B1-13, 2B1-3, 2B2-1, 2B1-12, 2B2-3, 2B1-12, 1B1-25: Ribs.

RTMP 168.2B2-11: Scapula.

RTMP 168.2A3-4, 2B1-6: Skull fragments.

RTMP 168.2B2-8: Squamosal.

RTMP 168.2B1-26: Ungual.

= cf. Centrosaurus aperatus RTMP 168.A1-13, A3-25, A1-26, 2A2-11, 2A4-1, 2B1-18: Limb elements?


SAMPSON, RYAN & TANKE, 1997

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 82.18.79: Adult partial parietal.

RTMP 80.18.110: Sub adult partial parietal.

RTMP 81.18.149: Juvenile partial parietal.

RTMP 70.11.83: Sub-adult nasal horn.

RTMP 79.11.147: Juvenile postorbital.

RTMP 82.18.139: Sub-adult postorbital.

RTMP 79.11.81: Adult postorbital, prefrontal, palpebral and lachrymal.

HONE, TANKE & BROWN, 2018

RTMP 2014.012.0036: Fragment of a squamosal of a subadult.

Note: Bitemarks (feeding trace).

 

Locality: Quarry 181, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 82.16.11: Nearly complete parietal, squamosal and laterosphenoids, right splenial, fragmentary jugal, postorbital, palatine and pterygoid
Note: Once believed to be a juvenile Monoclonius.

 

Locality: Quarry 204, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 92.82.1: Skull.

 

Locality: Quarry 217, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 94.164.1: Skull.

 

Locality: Quarry 224, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 97.85.1: Skull and lower jaw.
Note: Pits, left and right postorbital horn cores, right squamosal epoccipitals, corner of left squamosal, some parietal process missing, TANKE & FARKE, 2006.

 

Locality: Quarry 231, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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:

ROM 1427: Skull.

 

Locality:U 214, Dinosaur Provincial Park, South side of the west branch of Little Sandhill Creek, Red Deer River, 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 2003.12.168: Skull.

TANKE & FARKE, 2003

RTMP 91.18.18: Partial right squamosal.
Note: Palaeopathology, ‘punched out leasion’.

 

TANKE, 2007

Locality: Pinhorn Ranch, Pinhorn Grazing Lease, Manyberries, Forty Mile County, Alberta Province, Canada.

Horizon: Oldman Formation, , middle Judith River Group.

Biostratigraphy:

Age: Judithian age, Middle Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

RTMP 93.70.1: Partial skull.


= Monoclonius dawsoni LAMBE, 1902
Etymology: In honor of Dr. George M. Dawson, C.M.G., late Director of the Geological Survey of Canada.
= Brachyceratops dawsoni (LAMBE, 1902) LAMBE, 1915

Holotype: NMC 1173

Locality: Dinosaur Provincial Park, A short distance below the mouth of Berry Creek and Dead Lodge Canyon, west side of Red Deer River, 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: Fragmentary skull of a juvenile, a scapula and coracoid, a sacrum, and ilium, a rostral bone and a predentary bone.

Referred material:

HATCHER, MARSH & LULL, 1907

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

NMC 506: Left scapula and coracoid.

NMC Predentary.

 

= Centrosaurus flexus BROWN, 1914
Etymology: Latin, flex, "bent, curved."
= Monoclonius flexus (BROWN, 1914) KUHN, 1936 via Monoclonius inflexus KUHN, 1936 (sic)
= Monoclonius subgenus Centrosaurus flexus (LAMBE, 1914) LULL, 1933
= Eucentrosaurus flexus (BROWN, 1914) CHURE & McINTOSH, 1989

Holotype: AMNH 5239

Locality: Quarry 057, Dinosaur Provincial Park, 1 mile below Steveville, on the left bank of the Red Deer River, 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: Skull.

Referred material:


Locality: Quarry 249, Dinosaur Provincial Park, 2 miles from the mouth of Sand Creek, 12 miles south of Steveville, Red Deer River, 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:

AMNH 5341 (YPM 2015): Skull and skeleton.
Note: Mounted in the Yale Peabody Museum.
Note: Pathology, has two fused cervicals, V and VI.

 

= Monoclonius nasicornus BROWN, 1917
Etymology: Latin, nasus, "nose" and Latin, cornice, "ornamental molding along a wall"; in reference to the ornamental nose horn.
= Centrosaurus nasicornus (BROWN, 1917) LULL, 1933
= Monoclonius subgenus Centrosaurus nasicornus (BROWN, 1917) LULL, 1933
= Eucentrosaurus nasicornus (BROWN, 1917) CHURE & McINTOSH, 1989

Holotype: AMNH 5351

Locality: Quarry 105, Dinosaur Provincial Park, Along the banks of Sand Creek about 12 miles below Steveville, Dinosaur Provincial Park, Red Deer River, 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: Skull and skeleton.

New reconstruction of the skull.

Referred material:

AMNH 5443: Ulna.

 

LULL, 1933

Locality: Dinosaur Provincial Park, 1 1/2 miles south of the mouth of Little Sandhill Creek, Red Deer River, 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:

NMC: Skull with dentary and few bones of the skeleton.

 


Locality: Dinosaur Provincial Park, Dead Lodge Canyon, 8 miles below Steveville, Dinosaur Provincial Park, Red Deer River, 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:

USNM 8897: Skull.

 


= Centrosaurus longirostris STERNBERG, 1940
Etymology: Latin, longirostris, "long snout."
= Monoclonius longirostris (STERNBRERG, 1940)
= Centrosaurus longirotris STERNBERG, 1940 (sic)
= Eucentrosaurus longirostris (STERNBRERG, 1940) CHURE & McINTOSH, 1989

Holotype: CMN (NMC) 8795

Locality: Quarry 091, Dinosaur Provincial Park, 1 mile south of mouth of Sand Creek, quarry 91 on Steveville map (18m) 102 feet above the Red Deer River, 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: Skull and lower jaws.


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Species: cutleri (BROWN, 1917) L. S. RUSSELL, 1930
Etymology: In honor of William Edmund Cutler.
= Monoclonius cutleri BROWN, 1917
= Monoclonius subgenus Centrosaurus cutleri (BROWN, 1917) LULL, 1933
= Eucentrosaurus cutleri (BROWN, 1917) CHURE & McINTOSH, 1989

Holotype: AMNH 5427

Locality: Quarry unknown, Dinosaur Provincial Park, Near the mouth of Sand Creek, about 12 miles below Steveville, Dinosaur Provincial Park, Red Deer River, 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: Posterior part of skeleton.
Note: Skin impressions.

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