Where: Mesa County, Colorado (38.9° N, 108.5° W: paleocoordinates 33.1° N, 52.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Summerville Formation, Late/Upper Callovian to Late/Upper Callovian (164.7 - 157.3 Ma)

• Upper Summerville Formation - may be Tidwell Mb. of Morrison Fm.

• bed-level stratigraphic resolution

Environment/lithology: coastal; siliciclastic sediments

Size class: macrofossils

Preservation: trace

Collected in 1995

Collection methods: surface (in situ),

Primary reference: A. P. Hunt, M. G. Lockley, K. Hups and R. J. Schultze. 1995. Jurassic vertebrate paleontology of Cactus Park, west-central Colorado. Geological Society of America Abstracts-with-Programs 27(4):15 [M. Carrano/M. Carrano]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 92062: authorized by Richard Butler, entered by Richard Butler on 28.10.2009, edited by Matthew Carrano

Creative Commons license: CC BY (attribution)