USGS Loc. 16917 - Benton [Clayton Fm] (Paleocene of the United States)

Where: Benton County, Alabama (34.6° N, 92.6° W: paleocoordinates 38.5° N, 71.9° 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 Gardner, Smidt; reposited in the USNM

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

• COLLECTOR: J. Gardner, R. Smidt. 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 155921: 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
 Irregularia - Nucleolitidae
"Rhopostoma cruciferum" = Plagiochasma cruciferum
"Rhopostoma cruciferum" = Plagiochasma cruciferum Morton 1830 sea urchin