ammonites
Cope Quarry III, Cope's Nipple (Jurassic of the United States)

Also known as Saurian Hill

Where: Fremont County, Colorado (38.5° N, 105.2° W: paleocoordinates 34.5° N, 52.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Brushy Basin Member (Morrison Formation), Tithonian (150.8 - 145.5 Ma)

• near the top of the Morrison Formation

• bed-level stratigraphic resolution

Environment/lithology: dry floodplain; red mudstone

• "the matrix in the vicinity of the quarry is a reddish mudstone" (ref 19894)

Size class: macrofossils

Collected by O. W. Lucas; reposited in the AMNH

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

Primary reference: E. D. Cope. 1878. On the Saurians recently discovered in the Dakota Beds of Colorado. The American Naturalist 12(2):71-85 [J. Alroy/R. Whatley/R. Whatley] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48129: authorized by Matt Carrano, entered by Matt Carrano on 14.03.2005