Coastal Petroleum Co. well, Core 15 (5840-5850 feet) (Silurian of the United States)

Where: Levy County, Florida (29.0° N, 83.0° W: paleocoordinates 71.7° S, 55.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Unknown Formation, Ludlow (427.4 - 423.0 Ma)

• Listed as Ludlovian or late Wenlockian

• formation-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, black, gray shale

• Author's analysis of life habits leads them to shallow water conclusion, but their logic is questionable. Probably a cool-water assemblage
• Very dark gray to black shale

Size classes: macrofossils, mesofossils

Collection methods: Well core, sample covers 3.05 m (10 ft.) section; One bivalve more typical of Ludlovian age

Primary reference: J. Pojeta, J. Kriz, and J. M. Berdan. 1976. Silurian-Devonian pelecypods and Paleozoic stratigraphy of subsurface rocks in Florida and Georgia and related Silurian pelecypods from Bolivia and Turkey. United States Geological Survey Professional Paper 879:1-32 [P. Novack-Gottshall/P. Hearn/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 75631: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 23.10.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Orthocone "indet. sp. A"
"Ornamentation of Dawsonoceras"
Orthocone "indet. sp. B"
"Smooth straight shells"
Bivalvia
 Ostreida - Pterineidae
Actinopteria sp. Hall 1884 oyster
"Five left valves"
 Modiomorphida - Modiomorphidae
Butovicella migrans Barrande 1881 clam
"Three left valves"
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
[entered as Criniodea indet.]