RAM V201017 (RAM Collection): Late/Upper Campanian, Utah
collected by RAM
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteidae indet.
Cuvier 1825
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Reptilia
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Leidyosuchus sp.
Lambe 1907
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1 specimen | |||||||||
| RAM 14527, partial skeleton including partial lower jaws, left humerus, cervical rib, dorsal rib, cervical vertebra, dorsal vertebrae, and numerous osteoderms | ||||||||||
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Testudinata indet.
(Oppel 1811)
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1 specimen | |||||||||
| Humerus | ||||||||||
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Bivalvia
- Unionida
- Unionidae
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Unionidae indet.
Rafinesque 1820
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Utah | County: | Garfield |
| Coordinates: | 37.5° North, 111.5° West (view map) | ||||
| Paleocoordinates: | 45.4° North, 82.7° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
| Key time interval: | Late/Upper Campanian | ||
| Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
| Formation: | Kaiparowits | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Upper Campanian Kaiparowits Formation
Horizon—Upper portion of the middle unit of the Kaiparowits Formation, 17 m above an ash bed tentatively correlated to ash KBC-109, which has been dated to 75.51± 0.15 Ma | |||||
Lithology and environment
| Primary lithology: | tabular sandstone |
| Includes fossils? | Y |
| Lithology description: Indurated tabular sandstone with abundant plant fragments and clay casts | |
| Environment: | fluvial indet. |
| Geology comments: The Kaiparowits Formation is a non-marine sequence that was deposited upon a low-relief inland alluvial plain environment (Roberts et al. 2005). Radiometric dating demonstrates that it spans 76.1–74 Ma and thus dates to the Judithian North American Land Mammal Age (Cifelli et al. 2004; Roberts et al. 2005). It is contemporaneous with a number of well-studied late Campanian terrestrial vertebrate faunas of western North America (Gates et al. 2010). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,surface (in situ),mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | RAM |
Metadata
| Also known as: | Grand Staircase-Escalante National Monument | ||
| Database number: | 176982 | ||
| Authorizer: | P. Mannion | Enterer: | J. Tennant | Research group: | vertebrate |
| Created: | 2016-03-11 07:44:12 | Last modified: | 2016-03-11 07:44:12 |
| Access level: | the public | Released: | 2016-03-11 07:44:12 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 50046. | A. A. Farke, M. M. Henn, S. J. Woodward and H. A. Xu. 2014. Leidyosuchus (Crocodylia: Alligatoroidea) from the Upper Cretaceous Kaiporowits Formation (Late Campanian) of Utah, USA. PaleoBios 30(3):72-88 [P. Mannion/J. Tennant] |