Green River (YPM Collection) (Eocene of the United States)

Where: Wyoming (41.5° N, 109.5° W: paleocoordinates 45.5° N, 95.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

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

Size classes: macrofossils, mesofossils

Preservation: adpression

Reposited in the YPM

• In Yale University Museum, collector unknown

Primary reference: T. D. A. Cockerell. 1907. A New Fly (Mycetophilidae) from the Green River Beds. American Journal of Science, Series 4 23:285-286 [C. Labandeira/C. Labandeira/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 122743: authorized by Matthew Clapham, entered by Matthew Clapham on 05.01.2012, edited by Jered Karr

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Coleoptera - Carabidae
Carabites kincaidi n. sp.1 Cockerell 1908 ground beetle
might be larva of genus Neothanes
 Coleoptera - Curculionidae
Syntomostylus fortis n. sp.3 Cockerell 1909 snout beetle
YPM IP 026177
 Diptera - Mycetophilidae
Sackenia gibbosa n. sp. Cockerell 1907 fungus gnat
 Diptera - Limoniidae
Dicranomyia rhodolitha n. sp.2 Cockerell 1908 crane fly
Angiospermae
 Malvales - Sterculiaceae
Firmianites aterrimus n. gen. n. sp.3
Firmianites aterrimus n. gen. n. sp.3 Cockerell 1909