Near Rifle, locality 41235 (Eocene of the United States)

Where: Colorado (39.5° N, 108.0° W: paleocoordinates 43.3° N, 94.5° W)

• 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 159277: authorized by Matthew Clapham, entered by Matthew Clapham on 30.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Orthoptera - Trigonidiidae
"Trigonidiinae indet." = Trigonidiidae
"Trigonidiinae indet." = Trigonidiidae Saussure 1874 grasshopper
USNM Kohls 31068
 Orthoptera - Gryllidae
Gryllinae indet.
Gryllinae indet. Laicharting 1781 field cricket
USNM Kohls 29340
 Orthoptera - Mogoplistidae
Pteromogoplistes grandis
Pteromogoplistes grandis Gorochov 2012 scaly cricket
USNM Kohls 28374
 Orthoptera - Eumastacidae
Eoerianthus eocaenicus
Eoerianthus eocaenicus Gorochov 2012 monkey grasshopper
USNM Kohls 28372-AB