Where: Arkansas (33.5° N, 94.0° W: paleocoordinates 34.5° N, 85.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cockfield Formation (Claiborne Group), Bartonian (41.3 - 38.0 Ma)

• Berry placed the flora in the Wilcox Formation, but more recent work assigns the clay pits to the middle Eocene Cockfield Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: pond; lithified claystone

Size class: macrofossils

Preservation: adpression

Collected by E.W. Berry; reposited in the USNM

Primary reference: H. F. Wickham. 1929. Coleoptera from the lower Eocene (Wilcox) clays. Journal of the Washington Academy of Sciences 19:148-150 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151875: authorized by Matthew Clapham, entered by Matthew Clapham on 13.10.2013

Creative Commons license: CC BY (attribution)