Also known as RVRNA-13, CO-23

Where: Mesa County, Colorado (39.2° N, 109.0° W: paleocoordinates 34.7° N, 54.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Kimmeridgian (157.3 - 152.1 Ma)

• lower part of member

• bed-level stratigraphic resolution

Environment/lithology: "channel"; lithified sandstone

Size class: macrofossils

Preservation: mold/impression, trace

Collected by W. Averett & M. Averett in 1982–1988

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: H. J. Armstrong, W. R. Averett, M. E. Averett, E. S. McReynolds, and D. G. Wolny. 1987. Mid-Mesozoic paleontology of the Rabbit Valley area, western Colorado. In W. R. Averett (ed.), Paleontology and Geology of the Dinosaur Triangle: Guidebook for 1987 Field Trip. Museum of Western Colorado, Grand Junction 37-43 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 56590: authorized by Matthew Carrano, entered by Matthew Carrano on 21.11.2005

Creative Commons license: CC BY (attribution)