Grape Creek, Florissant (Eocene of the United States)

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)

• group of beds-level stratigraphic resolution

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

• "shales"

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by Marion Clare in 1994; reposited in the USNM

Primary reference: D. J. Bickel. 1995. A fossil Gymnopternus Loew (Diptera: Dolichopodidae) from the Florissant beds, Colorado. Psyche 102:169-172 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151374: authorized by Matthew Clapham, entered by Matthew Clapham on 29.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Diptera - Dolichopodidae
Gymnopternus lacustris n. sp.
Gymnopternus lacustris n. sp. Bickel 1995 long-legged fly
USNM 486681