Also known as Circle Cliffs 1, GS-ENM

Where: Garfield County, Utah (38.0° N, 111.1° W: paleocoordinates 16.8° N, 50.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Owl Rock Member (Chinle Formation), Rhaetian (208.5 - 201.3 Ma)

• upper part of member, approx. 3 m below Wingate Sandstone; late Revueltian

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; gray, green, silty claystone and concretionary, intraclastic, conglomeratic, calcareous sandstone

Size class: macrofossils

Preservation: mold/impression, trace

Collected by Foster, Hamblin, & Lockley in 1999-2002

Collection methods: surface (in situ), mechanical,

Primary reference: J. R. Foster, A. H. Hamblin, and M. G. Lockley. 2000. The oldest evidence of a sauropod dinosaur in the western United States and other important vertebrate trackways from Grand Staircase-Escalante National Monument, Utah. Ichnos 7(3):169-181 [M. Carrano/M. Carrano]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 57063: authorized by Matthew Carrano, entered by Kaitlin Maguire on 01.12.2005, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)