Where: Uintah County, Utah (40.0° N, 109.1° W: paleocoordinates 43.9° N, 95.6° W)

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

Environment/lithology: lacustrine - large; diatomaceous shale

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by Earl Douglass

Primary reference: F. M. Carpenter. 1930. The Fossil Ants of North America. Bulletin of the Museum of Comparative Zoology, Harvard University 70:1-66 [C. Labandeira/C. Labandeira/M. Kosnik]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 138650: authorized by Matthew Clapham, entered by Matthew Clapham on 23.01.2013

Creative Commons license: CC BY (attribution)