Where: Colorado (37.3° N, 107.9° W: paleocoordinates 36.8° N, 66.2° W)
• coordinate based on political unit
When: Animas Formation, Cretaceous (145.0 - 66.0 Ma)
• 'lowest horizon Durango Coal field.' From USGS unpublished log book.
• formation-level stratigraphic resolution
Environment/lithology: fluvial; conglomerate and coal
Reposited in the USNM
Collection methods: quarrying, mechanical,
• Specimens were collected by C.D. Smith for J. A. Taff, 1906.
Primary reference: R. W. Brown. 1962. Paleocene flora of the Rocky Mountains and Great Plains. United States Geological Survey Professional Paper 375:1-119 [P. Wilf/J. Sessa/J. Sessa]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 40287: authorized by Peter Wilf, entered by Jocelyn Sessa on 21.06.2004
Creative Commons license: CC BY (attribution)