Offshore zone -5, Durham Quadrangle, north of Cooper Heights (Ordovician of the United States)
Where: Walker County, Georgia (34.8° N, 85.4° W: paleocoordinates 29.2° S, 66.2° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Caradoc (458.4 - 449.5 Ma)
• no information given
Environment/lithology: offshore; gray limestone
• Thin to massive beds of gray, bluish-gray, and dark gray limestone; fine- to coarse-grained , sometimes with argillaceous partings. Thin shale partings and dark gray to black calcilutite partings may also be present.
Size class: macrofossils
Primary reference: A. T. Allen and J. G. Lester. 1957. Zonation of the Middle and Upper Ordovician strata in northwestern Georgia. Georgia State Division of Conservation, the Geological Survey Bulletin 66:1-104 [S. Holland/T. Hanson/T. Hanson]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 32874: authorized by Steven Holland, entered by Tori Hanson on 16.07.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| unclassified | |
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| Strophomenata | |
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Strophomena sp. Rafinesque and De Blainville 1824 | |
| Rhynchonellata | |
"Zygospira recurvirostris" = Anazyga recurvirostra
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Pionodema sp. Foerste 1912 | |
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| Stenolaemata | |
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| Ostracoda | |
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Leperditia sp. Rouault 1851 ostracod | |
| Trilobita | |
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Isotelus sp. Dekay 1824 trilobite | |
| Anthozoa | |
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Favosites sp. Lamarck 1816 tabulate coral | |
| Stromatoporoidea | |
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| Rhodophyceae | |
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| Tetradium | |
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