UNSM Macroclemys schmidti Site (Miocene of the United States)

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, 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

• none given

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

 Testudines - Panchelydridae
"Macroclemys schmidti" = Macrochelys schmidti
"Macroclemys schmidti" = Macrochelys schmidti Zangerl 1945 alligator snapping turtle
"virtually complete adult skull"