Where: Sweet Grass County, Montana (46.1° N, 110.0° W: paleocoordinates 52.3° N, 88.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Fort Union Formation, Torrejonian to Torrejonian (63.8 - 56.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by Dr. Marcus S. Farr, of Princeton University; reposited in the YPM

Primary reference: O. P. Hay. 1908. The fossil turtles of North America. Carnegie Institution of Washington Publication 75:1-568 [M. Carrano/M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131899: authorized by Roger Benson, entered by Roger Benson on 01.08.2012, edited by Philip Mannion

Creative Commons license: CC BY (attribution)