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 C. Hill, Cockerell; reposited in the YPM

Primary reference: T. D. A. Cockerell. 1909. Description of Tertiary insects, VII. American Journal of Science, Series 4 28:283-286 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124002: authorized by Matthew Clapham, entered by Matthew Clapham on 05.02.2012, edited by Amy Delelli

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)