West side of Sand Creek, Smoky Hill River: Late/Upper Coniacian - Early/Lower Santonian, Kansas
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Ctenochelyidae
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Ctenochelys stenoporus
(Hay 1905)
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Matzke 2007 | |||||||||
| USNM 357166, juvenile specimen | ||||||||||
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Reptilia
- Mosasauridae
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Platecarpus planifrons
(Cope 1874)
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| UALVP 24240 (articulated skull, lower jaws, atlas and axis) and UALVP 40402 (disarticulated skull and lower jaw bones with four anterior cervical vertebrae) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Kansas | County: | Gove |
| Coordinates: | 38.7° North, 100.2° West (view map) | ||||
| Paleocoordinates: | 41.5° North, 66.6° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 762 meters | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
| 10 m.y. bin: | Cretaceous 6 | ||
| Key time interval: | Late/Upper Coniacian - Early/Lower Santonian | ||
| Age range of interval: | 89.80000 - 83.60000 m.y. ago |
Stratigraphy
| Geological group: | Colorado | Formation: | Niobrara | Member: | Smoky Hill Chalk |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: low in formation, below Hattin's Marker Unit 3 | |||||
Lithology and environment
| Primary lithology: | chalk |
| Includes fossils? | Y |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Platecarpus planifrons referred material | ||
| Database number: | 123574 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion, J. Tennant |
| Modifier: | J. Tennant | Research group: | vertebrate |
| Created: | 2012-01-26 01:38:08 | Last modified: | 2013-03-05 11:13:25 |
| Access level: | the public | Released: | 2012-01-26 01:38:08 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 33389. | T. Konishi and M. W. Caldwell. 2007. New specimens of Platecarpus planifrons (Cope, 1874) (Squamata: Mosasauridae) and a revised taxonomy of the genus. Journal of Vertebrate Paleontology 27(1):59-72 [M. Carrano/H. Street/P. Mannion] |
Secondary references:
| 45324 | A. T. Matzke. 2007. An almost complete juvenile specimen of the cheloniid turtle Ctenochelys stenoporus (Hay, 1905) from the Upper Cretaceous Niobrara Formation of Kansas, USA. Palaeontology 50(3):669-691 [P. Mannion/J. Tennant] |