USGS Loc. 16916 - Beaver Branch [Clayton Fm] (Paleocene of the United States)

Where: Crenshaw County, Alabama (31.7° N, 86.3° W: paleocoordinates 34.5° N, 66.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Clayton Formation (Midway Group), Danian (66.0 - 61.6 Ma)

• LITHOSTRATIGRAPHY: Not stated in text; assumed to be from Clayton Fm, on the basis of other local collections. AGE: Paleocene in test; assumed to be Danian on the basis of age of other local collections. STRATIGRAPHIC REPORTED: From unknown position in local section.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithology not reported

Size class: macrofossils

Collected by MacNeil; reposited in the USNM

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

• COLLECTOR: F.S. MacNeil. REPOSITORY: USNM (formerly USGS).

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 155924: 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.
Echinoidea
 Cassiduloida - Cassidulidae
Echanthus georgiensis Clark and Twitchell 1915 sea urchin