Champsosaurus gigas type (SMM) (Paleocene of the United States)

Where: Golden Valley County, North Dakota (47.0° N, 103.9° W: paleocoordinates 51.7° N, 83.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Sentinel Butte Member (Fort Union Formation), Late/Upper Paleocene (58.7 - 55.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Collected by B. R. Erickson, R. Lingk, E. Lingk in 1971

Primary reference: B. R. Erickson. 1972. The lepidosaurian reptile Champsosaurus in North America. The Science Museum of Minnesota, Monograph (Paleontology) 1:1-91 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 78394: authorized by Matthew Carrano, entered by Matthew Carrano on 05.02.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Choristodera -
Champsosaurus gigas n. sp. Erickson 1972 choristodere
SMM P71.2.1