Where: Garfield County, Montana (47.3° N, 107.2° W: paleocoordinates 54.1° N, 80.4° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• "near the top of the Hell Creek Beds, 350 feet above the Pierre"

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. Brown; reposited in the AMNH

Primary reference: C. W. Gilmore. 1910. Leidyosuchus sternbergii, a new species of crocodile from the Ceratops Beds of Wyoming. Proceedings of the United States National Museum 38(1762):485-502 [M. Carrano/M. Carrano/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99881: authorized by John Alroy, entered by John Alroy on 26.11.2010

Creative Commons license: CC BY (attribution)