West of Rifle, locality 41222 (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: P. Vršanský, R. Oruzinsky, P. Barna, L. Vidlička, and C. C. Labandeira. 2014. Native Ectobius (Blattaria: Ectobiidae) from the early Eocene Green River Formation of Colorado and its reintroduction to North America 49 million years later. Annals of the Entomological Society of America 107:28-36 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154000: authorized by Matthew Clapham, entered by Matthew Clapham on 22.01.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Orthoptera - Mogoplistidae
Pteromogoplistes ? smithii Scudder 1890 scaly cricket
USNM Kohls 27853-AB, 27857
 Orthoptera - Phalangopsidae
Eozacla problematica Gorochov 2012 spider cricket
USNM Kohls 29834
 Blattodea - Ectobiidae
Ectobius kohlsi Vršanský et al. 2014 croton bug
USNM 41222/27865