Where: McCone County County, Montana (47.9° N, 106.2° W: paleocoordinates 54.5° N, 79.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Hell Creek Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• Upper Hell Creek Formation, 96 feet below Z coal bed

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by R. E. Sloan in 1965

Collection methods: surface (float), surface (in situ),

Primary reference: E. S. Gaffney. 1972. The systematics of the North American family Baenidae (Reptilia, Cryptodira). Bulletin of the American Museum of Natural History 147(5):245-312 [J. Alroy/M. Sommers/R. Benson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 128458: authorized by Roger Benson, entered by Roger Benson on 09.06.2012

Creative Commons license: CC BY (attribution)