South of Hardin (Cretaceous of the United States)

Where: Big Horn County, Montana (45.6° N, 107.6° W: paleocoordinates 52.2° N, 74.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Telegraph Creek Formation, Campanian (83.6 - 72.1 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collected by C. H. Rogers in 1947; reposited in the USNM

Primary reference: D. A. Russell. 1964. The Skull of American Mosasaurs. 1-386 [M. Carrano/H. Street/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 107709: authorized by Matthew Carrano, entered by Hallie Street on 14.04.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Squamata - Mosasauridae
Tylosaurus proriger Cope 1869 mosasaur
USNM 17909, skull