Where: Blaine County, Montana (47.8° N, 108.9° W: paleocoordinates 54.7° N, 75.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Judith River Formation (Montana Group), Middle Campanian to Middle Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by J. B. Hatcher in 1887; reposited in the USNM

Collection methods: mechanical

Primary reference: O. P. Hay. 1908. Descriptions of five species of North American fossil turtles, four of which are new. Proceedings of the United States National Museum 35:161-169 [D. Nicholson/D. Nicholson/D. Nicholson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 177030: authorized by Patricia Holroyd, entered by Patricia Holroyd on 16.03.2016

Creative Commons license: CC BY (attribution)