Where: Box Butte County, Nebraska (42.4° N, 103.0° W: paleocoordinates 43.1° N, 99.1° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Runningwater Formation, Early/Lower Hemingfordian (20.4 - 16.0 Ma)
• 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)
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Reposited in the UNSM
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 34754: authorized by John Alroy, entered by Erin Leckey on 22.09.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Macroclemys schmidti" = Macrochelys schmidti
"Macroclemys schmidti" = Macrochelys schmidti Zangerl 1945 alligator snapping turtle "virtually complete adult skull"
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