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: P. P. Calvert. 1913. The fossil odonate Phenacolestes, with a discussion of the venation of the legion Podagrion Selys. Proceedings of the Academy of Natural Sciences of Philadelphia 65:225-272 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 162204: authorized by Matthew Clapham, entered by Matthew Clapham on 20.09.2014

Creative Commons license: CC BY (attribution)