UNSM Macroclemys schmidti Site: Early/Lower Hemingfordian, Nebraska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Testudines
- Chelydridae
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Macroclemys schmidti
Zangerl 1945
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1 specimen | |||||||||
recombined as Macrochelys schmidti | ||||||||||
"virtually complete adult skull" | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Nebraska | County: | Box Butte |
Coordinates: | 42.4° North, 103.0° West (view map) | ||||
Paleocoordinates: | 43.1° North, 99.1° West | ||||
Basis of coordinate: | stated in text | ||||
Altitude: | 1238 meters | ||||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Early/Lower Hemingfordian | ||
Age range of interval: | 20.43000 - 15.97000 m.y. ago |
Stratigraphy
Formation: | Runningwater | ||||
Local section: | PineR | Local bed: | 16 | ||
Stratigraphy comments: from the "Marsland Formation" (presumably the Hemingfordian "upper Marsland" = Runningwater, which is widely exposed in Box Butte County, and not the "lower Marsland" = Upper Harrison Beds) |
Lithology and environment
Primary lithology: | not reported |
Lithology description: none given | |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | survey of museum collection |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | UNSM |
Metadata
Database number: | 34754 | ||
Authorizer: | J. Alroy | Enterer: | E. Leckey |
Modifier: | G. Varnham | Research group: | vertebrate |
Subset of collection #: | 17963 | ||
Created: | 2003-09-22 11:58:00 | Last modified: | 2022-05-04 05:02:56 |
Access level: | the public | Released: | 2003-09-22 11:58:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
715. | K. N. Whetstone. 1978. Additional record of the fossil snapping turtle Macroclemys schmidti from the Marsland Formation (Miocene) of Nebraska with notes on interspecific skull variation within the genus Macroclemys. Copeia 1978:159-162 [J. Alroy/M. Sommers/J. Alroy] |