Where: Wyoming (41.8° N, 110.7° W: paleocoordinates 46.9° N, 94.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Fossil Butte Member (Green River Formation), Wasatchian (55.8 - 50.3 Ma)

• Found within 1 m above K-spar Tuff dated at 51.98 Ma, Fossil Butte Member, Minifish beds, Green River Formation

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - large; lithified, diatomaceous shale

Size classes: macrofossils, mesofossils

Preservation: adpression, soft parts

Collection methods: Repository: Fossil Butte National Monument (FOBU)

Primary reference: G. Bechly, R. Garrouste, J. A. Karr, L. Grande, and A. Nel. 2020. The damselfly palaeofauna from the Eocene of Wyoming and Colorado, USA (Insecta, Odonata, Zygoptera). Papers in Palaeontology 7:1373-1402 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 221180: authorized by Matthew Clapham, entered by Matthew Clapham on 14.07.2021

Creative Commons license: CC BY (attribution)