Standing Rock Indian Reservation (USNM): Late/Upper Maastrichtian, South Dakota
collected by A. L. Beekley 1909
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteus sp.
Agassiz 1843
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| corrected from listing as "Lepidosteus" | ||||||||||
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Reptilia
- Ceratopsidae
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Triceratops sp.
Marsh 1889
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Reptilia
- Hadrosauridae
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Trachodon sp.
Leidy 1856
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| nomen dubium belonging to Hadrosauridae | ||||||||||
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Reptilia
- Crocodylia
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Leidyosuchus sp.
Lambe 1907
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= Crocodylia indet.
Owen 1842
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Alroy 2007 | |||||||||
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Reptilia
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Champsosaurus sp.
Cope 1876
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Reptilia
- Testudines
- Nanhsiungchelyidae
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Basilemys sp.
Hay 1902
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Corson |
| Coordinates: | 45.8° North, 101.2° West (view map) | ||||
| Paleocoordinates: | 51.5° North, 74.7° 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: | Late/Upper Maastrichtian | ||
| Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
| Formation: | Lance | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: described as "Ceratops Beds (or their equivalent)", but actually Lance | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils,mesofossils |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | A. L. Beekley | Collection dates: | 1909 |
Metadata
| Database number: | 50082 | ||
| Authorizer: | M. Carrano, J. Alroy | Enterer: | M. Carrano, J. Alroy |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2005-05-06 06:48:21 | Last modified: | 2022-02-03 07:56:27 |
| Access level: | the public | Released: | 2005-05-06 06:48:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 13456. | ETE | C. W. Gilmore. 1910. Leidyosuchus sternbergii, a new species of crocodile from the Ceratops Beds of Wyoming. Proceedings of the United States National Museum 38(1762):485-502 [M. Carrano/M. Carrano/J. Alroy] |
Secondary references:
| 19636 | J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy] |