UNSM Macroclemys schmidti Site: Early/Lower Hemingfordian, Nebraska

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Testudines - Chelydridae
Macroclemys schmidti Zangerl 1945
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]