Rio Blanco County (Eocene of the United States)

Where: Colorado (39.7° N, 108.1° W: paleocoordinates 42.4° N, 97.1° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Parachute Creek Member (Green River Formation), Uintan (46.2 - 40.4 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified mudstone

Size class: macrofossils

Preservation: adpression

Collected by Mark B. DeBois

• Repository: SNHSD State Natural History Survey Division, Section of Faunistic Surveys and Insect Identification, Champaign, Illinois

Primary reference: G. M. Dlussky and A. P. Rasnitsyn. 2002. Ants (Hymenoptera: Formicidae) of Formation Green River and some other middle Eocene deposits of North America. Russian Entomological Journal 11:411-436 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138682: authorized by Matthew Clapham, entered by Matthew Clapham on 25.01.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hymenoptera - Formicidae
Formicinae indet. Latreille 1802 ant
SNHSD 217/333-684