Where: Yellowstone County, Montana (45.4° N, 108.3° W: paleocoordinates 45.8° N, 67.8° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Graneros Shale Formation, Cenomanian (100.5 - 93.9 Ma)

• from near the base of the Graneros shales of the Benton deposits

Environment/lithology: marine; shale

Size class: macrofossils

Collected by Barnum Brown in 1902

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 130808: authorized by Roger Benson, entered by Roger Benson on 14.07.2012

Creative Commons license: CC BY (attribution)