West of Rifle, locality 41822 (Eocene of the United States)

Where: Colorado (39.5° N, 108.0° W)

• Paleocoordinates: 46.8° N, 85.1° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Green River Formation, Bridgerian (50.3 - 46.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified lime mudstone

• Laramide-style block faulting

Size class: macrofossils

Preservation: adpression

Collected by D. Kohls; reposited in the USNM

Primary reference: A. V. Gorochov and C. C. Labandeira. 2012. Eocene Orthoptera from Green River Formation of Wyoming (USA). Russian Entomological Journal 21:357-370 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154004: authorized by Matthew Clapham, entered by Matthew Clapham on 22.01.2014

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Insecta
 Blattodea - Ectobiidae
Ectobius kohlsi
Ectobius kohlsi Vršanský et al. 2014 croton bug
USNM 41822/53843
 Orthoptera - Tetrigidae
Eotetrix unicornis
Eotetrix unicornis Gorochov 2012 pygmy grasshopper
USNM Kohls 54451
 Orthoptera - Mogoplistidae
Pteromogoplistes ? smithii
Pteromogoplistes ? smithii Scudder 1890 scaly cricket
USNM Kohls 54493/54494, 54907
 Orthoptera - Gryllidae
Eogryllus unicolor
Eogryllus unicolor Gorochov 2012 field cricket
USNM Kohls 54429