Quarry No. 3, Sieber Ranch (AMNH): Maastrichtian, Montana
collected by B. Brown, R. S. Lull, & Brooks 1902
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Ceratopsidae
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Triceratops sp.
Marsh 1889
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1 specimen | |||||||||
| AMNH 971, skull (3 measurements) | ||||||||||
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= Trieratops serratus
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Lull 1903 | |||||||||
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= Triceratops elatus
Marsh 1891
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Osborn 1933 | |||||||||
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= Triceratops serratus
Marsh 1890
|
Lull 1933 | |||||||||
| synonym of Triceratops horridus | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Montana | County: | Garfield |
| Coordinates: | 47.5° North, 107.1° West (view map) | ||||
| Paleocoordinates: | 54.5° North, 79.7° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Hell Creek | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "240 feet above Fort Pierre"; "Ceratops Clays, 240 feet above the Pierre shales" | |||||
Lithology and environment
| Primary lithology: | claystone |
| Includes fossils? | Y |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,surface (in situ),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | AMNH | ||
| Collectors: | B. Brown, R. S. Lull, & Brooks | Collection dates: | 1902 |
Metadata
| Also known as: | Hell Creek Cañon | ||
| Database number: | 100852 | ||
| Authorizer: | J. Alroy, M. Carrano | Enterer: | J. Alroy, M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2010-12-13 21:55:00 | Last modified: | 2022-12-09 14:01:45 |
| Access level: | the public | Released: | 2010-12-13 21:55:00 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 53938. | W. Brasley. 1903. A remarkable fossil discovery. Scientific American 89(5):87 [M. Carrano/M. Carrano] |
Secondary references:
| 12304 | ETE | J. B. Hatcher, O. C. Marsh, and R. S. Lull. 1907. The Ceratopsia. Monographs of the United States Geological Survey 49:1-198 [M. Carrano/M. Carrano/M. Carrano] |
| 62865 | R. S. Lull. 1903. Skull of Triceratops serratus. Bulletin of the American Museum of Natural History 19:685-695 [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] |
| 13079 | ETE | H. F. Osborn. 1933. Mounted skeleton of Triceratops elatus. American Museum Novitates 654:1-14 [M. Carrano/M. Carrano/M. Carrano] |