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

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

• "from the lowest beds"

Environment/lithology: lacustrine - large; diatomaceous shale

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by S. Scudder

Primary reference: S. H. Scudder. 1892. Some Insects of special interest from Florissant, Colorado and other points in the Tertiaries of Colorado and Utah. Bulletin of the United States Geological Survey 93:1-25 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116369: authorized by Matthew Clapham, entered by Alex Aguilar on 07.09.2011, edited by Jered Karr and Matthew Clapham

Creative Commons license: CC BY (attribution)