Crocodilian Locality D: Clarendonian, Nebraska
collected by M. Voorhies
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Rodentia
- Castoridae
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Eucastor sp.
Allen 1877
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| "advanced" | ||||||||||
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Mammalia
- Perissodactyla
- Equidae
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Neohipparion sp.
Gidley 1903
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| "large" | ||||||||||
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= Hipparionini indet.
Quinn 1955
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Alroy 2007 | |||||||||
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Mammalia
- Perissodactyla
- Rhinocerotidae
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Teleoceras sp.
Hatcher 1894
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Reptilia
- Testudines
- Trionychidae
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Trionychidae indet.
Gray 1825
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| "soft-shelled turtles" | ||||||||||
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Reptilia
- Crocodylia
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Crocodylia indet.
(Owen 1842)
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3 specimens | |||||||||
| "crocodilian"; 2 teeth, dermal plate | ||||||||||
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Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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| "frogs" | ||||||||||
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Actinopteri
- Lepisosteiformes
- Lepisosteidae
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Lepisosteidae indet.
Cuvier 1825
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| "gar" | ||||||||||
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Actinopteri
- Cyprinodontiformes
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Cyprinodontiformes indet.
Bertin 1958
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| "cyprinodont fishes" | ||||||||||
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Actinopteri
- Siluriformes
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Siluriformes indet.
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| "catfish" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nebraska | County: | Antelope |
| Coordinates: | 42.4° North, 98.1° West (view map) | ||||
| Paleocoordinates: | 42.8° North, 95.5° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5-6 | ||
| Key time interval: | Clarendonian | ||
| Age range of interval: | 12.50000 - 9.40000 m.y. ago |
Stratigraphy
| Formation: | Ash Hollow | Member: | Cap Rock | ||
| Regional section: | ValAH | Regional bed: | 5 | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Clarendonian" | |||||
Lithology and environment
| Primary lithology: | lenticular calcareous claystone |
| Includes fossils? | Y |
| Lithology description: "a small lens of highly calcareous clay" | |
| Environment: | pond |
| Geology comments: "pond" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | paleoecologic analysis |
| Museum repositories: | UNSM |
| Collectors: | M. Voorhies |
| Taxonomic list comments:apparently not the same as Bluejay Quarry, which is in the same section but in a sandstone in the Merritt Dam Member, or as Poison Ivy Quarry, which is a bonebed in a volcanic tuff | |
Metadata
| Database number: | 74098 | ||
| Authorizer: | J. Alroy | Enterer: | J. Alroy |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2007-07-22 16:33:21 | Last modified: | 2022-03-01 08:14:59 |
| Access level: | the public | Released: | 2007-07-22 16:33:21 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 24880. | M. R. Voorhies. 1971. Paleoclimatic significance of crocodilian remains from the Ogallala Group (upper Tertiary) in northeastern Nebraska. Journal of Paleontology 45(1):119-121 [J. Alroy/J. Alroy] |
Secondary references:
| 19636 | J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy] |