Where: Teller County, Colorado (38.9° N, 105.3° W: paleocoordinates 40.4° N, 97.0° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Florissant Formation, Chadronian (37.2 - 33.9 Ma)

Environment/lithology: lacustrine - large; lithified, diatomaceous, tuffaceous shale

Size class: mesofossils

Preservation: adpression

Collected by W. P. Cockerell, T. D. A. Cockerell, S. A. Rohwer; reposited in the UCM

Primary reference: T. D. A. Cockerell. 1910. Fossil insects and a crustacean from Florissant, Colorado. Bulletin of the American Museum of Natural History 28:275-288 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140083: authorized by Matthew Clapham, entered by Matthew Clapham on 28.02.2013

Creative Commons license: CC BY (attribution)