USGS Loc. 246, USGS Loc. 2629 - Enterprise [Winona Fm] (Eocene of the United States)

Where: Clarke County, Mississippi (32.2° N, 88.8° W: paleocoordinates 33.4° N, 77.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Winona Formation (Claiborne Group), Lutetian (47.8 - 41.3 Ma)

• LITHOSTRATIGRAPHY: Winona Sand in text; other local collections are from the Winona Formation. AGE: Middle Eocene in text; assumed to be Lutetian on the basis of age of other local collections from same formation. STRATIGRAPHIC REPORTED: From unknown position in local section.

• formation-level stratigraphic resolution

Environment/lithology: coastal; sandstone

Size class: macrofossils

Collected by Burns; reposited in the USNM

Collection methods: surface (float), surface (in situ),


Primary reference: C. W. Cooke. 1959. Cenozoic echinoids of eastern United States. United States Geological Survey Professional Papers 321:1-106 [L. Villier/L. Villier/M. Hopkins]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 155927: authorized by Austin Hendy, entered by Austin Hendy on 04.05.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to echinoidea, but molluscs are probably present. NOMENCLATURE: Authoritative publication with species-resolution identifications, but somewhat antiquated nomenclature.
 Spatangoida - Loveniidae
Hemipatagus arguta n. sp. heart urchin
 Clypeasteroida - Protoscutellidae
Protoscutella mississippiensis Clark and Twitchell 1915 sand dollar