Where: Colorado (37.7° N, 108.4° W: paleocoordinates 3.4° N, 36.0° W)

When: Rico Formation, Virgilian to Virgilian (303.7 - 295.0 Ma)

• This should be uppermost Carboniferous, although the rock unit spans the C/P boundary

• group of beds-level stratigraphic resolution

Environment/lithology: red, sandy limestone

Size class: macrofossils

Collected by Cross and Spencer in 26 1898; reposited in the USNM

Primary reference: G. H. Girty. 1903. The Carboniferous formations and faunas of Colorado. United States Geological Survey Professional Paper 16:7-546 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184118: authorized by Pete Wagner, entered by Pete Wagner on 02.02.2017

Creative Commons license: CC BY (attribution)