3 miles west of Buffalo Lake: Early/Lower Maastrichtian, Montana
collected by B. Brown & P. Kaisen 1916
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Leptoceratopsidae
|
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|
Ceratopsia indet.
Marsh 1890
|
1 individual | |||||||||
| "a dwarf type of horned dinosaur" (3 measurements) | ||||||||||
|
= Leptoceratops sp.
Brown 1914
|
Lull 1933 | |||||||||
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= Leptoceratops cerorhynchus n. sp.
Brown and Schlaikjer 1942
|
Brown and Schlaikjer 1942 | |||||||||
| recombined as Montanoceratops cerorhynchus | ||||||||||
| AMNH 5464 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Glacier |
| Coordinates: | 48.9° North, 112.7° West (view map) | ||||
| Paleocoordinates: | 56.7° North, 85.9° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 4062 feet | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Early/Lower Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | St. Mary River | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: lower part of St. Mary River Fm. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Associated major elements: | all |
| Fragmentation: | frequent |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | AMNH | ||
| Collectors: | B. Brown & P. Kaisen | Collection dates: | 1916 |
Metadata
| Also known as: | Blackfeet Indian Reservation, Montanoceratops | ||
| Database number: | 55266 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-10-04 06:57:52 | Last modified: | 2017-07-27 14:45:23 |
| Access level: | the public | Released: | 2005-10-04 06:57:52 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 62751. | H. F. Osborn. 1917. Extinct vertebrates. Forty-Eighth Annual Report of the American Museum of Natural History for the Year 1916 81-83 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 14769 | ETE | B. Brown and E. M. Schlaikjer. 1942. The skeleton of Leptoceratops with the description of a new species. American Museum Novitates 1169:1-15 [M. Carrano/M. Carrano] |
| 14768 | ETE | B. J. Chinnery and D. B. Weishampel. 1998. Montanoceratops cerorhynchus (Dinosauria: Ceratopsia) and relationships among basal neoceratopsians. Journal of Vertebrate Paleontology 18(3):569-585 [M. Carrano/M. Carrano] |
| 12314 | ETE | R. S. Lull. 1933. A revision of the Ceratopsia or horned dinosaurs. Memoirs of the Peabody Museum of Natural History 3(3):1-175 [M. Carrano/M. Carrano/M. Carrano] |
| 33415 | ETE | P. J. Makovicky. 2010. A redescription of the Montanoceratops cerorhynchus holotype with a review of referred material. In M. J. Ryan, B. J. Chinnery-Allgeier, D. A. Eberth (eds.), New Perspectives on Horned Dinosaurs: The Royal Tyrrell Museum Ceratopsian Symposium. Indiana University Press, Bloomington 68-82 [M. Carrano/M. Carrano] |
| 18564 | ETE | C. M. Sternberg. 1951. Complete skeleton of Leptoceratops gracilis Brown from the Upper Edmonton Member on Red Deer River, Alberta. National Museum of Canada Bulletin 123:225-255 [M. Carrano/M. Carrano] |