Where: Fall River County, South Dakota (43.3° N, 103.9° W: paleocoordinates 49.1° N, 71.2° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• "from the lower Pierre"

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

Size class: macrofossils

Collected by B. Brown in 1903; 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 107644: authorized by Matthew Carrano, entered by Hallie Street on 12.04.2011

Creative Commons license: CC BY (attribution)