Where: Shannon County, South Dakota (43.3° N, 102.5° W: paleocoordinates 44.4° N, 94.3° W)

• coordinate based on political unit

When: Arikaree Formation (White River Group), Orellan (33.9 - 33.3 Ma)

• "Leptauchenia zone (Protoceras beds)" = Poleslide Mb of Brule Fm (Bump 1956), however Hoganson et al (1998) put the Protoceras in the Arikaree Fm.

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by Abbott in 1905

Primary reference: C. W. Gilmore. 1928. Fossil lizards of North America. Memoirs of the National Academy of Sciences 22(3):1-201 [J. Head/J. Head/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 180116: authorized by Paul Barrett, entered by Terri Cleary on 08.07.2016

Creative Commons license: CC BY (attribution)