Where: Shannon County, South Dakota (43.4° N, 102.5° W: paleocoordinates 44.5° N, 94.3° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Scenic Member (Brule Formation), Orellan (33.9 - 33.3 Ma)

• "Lower Oreodon beds, White River, Oligocene." = Scenic Member, according to Bump 1956

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by Albert Thompson in 1904; reposited in the AMNH

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: taxonomic analysis

PaleoDB collection 179966: authorized by Paul Barrett, entered by Terri Cleary on 05.07.2016

Creative Commons license: CC BY (attribution)