Where: Mesa County, Colorado (39.2° N, 108.2° W: paleocoordinates 44.5° N, 90.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Atwell Gulch Member (Fort Union Formation), Clarkforkian (56.2 - 54.9 Ma)

• Lichtig and Lucas (2015) report this site as belonging to DeBeque Formation following Kihm (1984), but this is disused and Paleocene beds in this area are assigned to Atwell Gulch Member of Fort Union Formation (see Burger and Honey (2008) JVP 28:816-825).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported and claystone

Size classes: macrofossils, mesofossils

Reposited in the UCM

Primary reference: A. J. Lichtig and S. G. Lucas. 2015. Paleocene-Eocene turtles of the Piceance Creek Basin, Colorado. New Mexico Museum of Natural History and Science Bulletin 67:145-152 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 176832: authorized by Patricia Holroyd, entered by Patricia Holroyd on 05.03.2016

Creative Commons license: CC BY (attribution)