USGS Loc. 6767 - Marianna [Marianna Lmst] (Oligocene of the United States)

Where: Jackson County, Florida (30.8° N, 85.2° W: paleocoordinates 30.9° N, 78.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Marianna Limestone Formation, Rupelian (33.9 - 28.1 Ma)

• LITHOSTRATIGRAPHY: From the Marianna Limestone, for which lithostratigraphic relations are not discussed. AGE: Late Oligocene in text. STRATIGRAPHIC POSITION: From unknown position in local section.

• bed-level stratigraphic resolution

Environment/lithology: poorly lithified, black, gray, yellow limestone

• No paleoenvironmental information reported.
• LITHOLOGY: Limestone, lightish gray to yellow, stained black on weathered surface, soft, porous "chimney rock". LITHIFICATION: Poorly-lithified, on the basis of facies description.

Size class: macrofossils

Collected by Cooke; reposited in the USNM

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

• COLLECTOR: C.W. Cooke. 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 155951: 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
 Clypeasteroida - Clypeasteridae
Clypeaster rogersi
Clypeaster rogersi Morton 1834 sand dollar