Where: Fall River County, South Dakota (43.1° N, 104.0° W: paleocoordinates 49.0° N, 71.4° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Pierre Shale Formation (Montana Group), Campanian (83.6 - 72.1 Ma)

• lower Pierre

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

Size class: macrofossils

Collected by B. Brown; reposited in the AMNH

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 107673: authorized by Matthew Carrano, entered by Hallie Street on 13.04.2011

Creative Commons license: CC BY (attribution)