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 Willard Rusk, Terry Duce in 1909; reposited in the UCM

• Collected summer 1909. Presented to the Museum of the University of Colorado

Primary reference: T. D. A. Cockerell. 1909. New fossil insects from Florissant, Colorado. Annals of the Entomological Society of America 2:251-256 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122742: authorized by Matthew Clapham, entered by Matthew Clapham on 05.01.2012, edited by Amy Delelli and Jered Karr

Creative Commons license: CC BY (attribution)