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

Reposited in the UMMP

Primary reference: M. T. James. 1939. A preliminary review of certain families of Diptera from the Florissant Miocene Beds. II. Journal of Paleontology 13(1):42-48 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 106385: authorized by John Alroy, entered by John Alroy on 13.03.2011

Creative Commons license: CC BY (attribution)