About 10 or 15 miles west of north of Red Lodge (Paleocene of the United States)

Where: Montana (45.2° N, 109.5° W: paleocoordinates 51.5° N, 87.8° W)

• coordinate estimated from map

When: Fort Union Formation, Paleocene (66.0 - 56.0 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by C. F. Kay, of the United States Geological Survey in 1908

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 128448: authorized by Roger Benson, entered by Roger Benson on 09.06.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudinata - Baenidae
Chisternon interpositum n. sp. Hay 1909 turtle
USNM 6058, anterior portions of carapace and plastron