USGS Loc. 6712 - St. Stephen Bluff [Red Bluff Clay] (Oligocene of the United States)

Where: Washington County, Alabama (31.5° N, 88.1° W: paleocoordinates 31.8° N, 81.6° W)

• coordinate based on nearby landmark

When: Red Bluff Clay Formation, Rupelian (33.9 - 28.1 Ma)

Environment/lithology: marine; poorly lithified limestone

Size class: macrofossils

Collected by Branson; reposited in the USNM

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

• COLLECTOR: C.C. Branson. REPOSITORY: USNM.

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 155972: 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.
Show authors, comments, and common names
Echinoidea
 Spatangoida - Brissidae
Cyclaster drewryensis
Cyclaster drewryensis Cooke 1942 heart urchin