Where: Calhoun County, Florida (30.4° N, 85.2° W: paleocoordinates 30.8° N, 81.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Chipola Formation (Alum Bluff Group), Burdigalian (20.4 - 16.0 Ma)
• AGE: Direct date from 87Sr/86Sr isotope dating of fossils from elsewhere in Chipola Fm [=Burdigalian age].
• formation-level stratigraphic resolution
Environment/lithology: marine; unlithified, calcareous marl and unlithified, calcareous sandstone
Size class: macrofossils
Reposited in the USGS
Primary reference: J. R. Gardner. 1947. The Molluscan Fauna of the Alum Bluff Group of Florida. United States Geological Survey Professional Paper (142A-H)1-709 [A. Miller/K. Layou/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 42365: authorized by Arnold Miller, entered by Karen Layou on 28.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Pecten (Chlamys) condylomatus" = Lyropecten condylomatus
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"Ostrea rugifera" = Cubitostrea rugifera
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"Ostrea haitensis" = Hyotissa haitensis
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"Arca (Barbatia) adamsi" = Arcopsis adamsi
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"Arca (Diluvarca) santarosana" = Anadara (Diluvarca) santarosana
"Arca (Diluvarca) santarosana" = Anadara (Diluvarca) santarosana Dall 1898 ark present; A. (D.) santarosana geraetera
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"Glycymeris subovata" = Costaglycymeris subovata
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"Cardium (Cerastoderma) chipolanum" = Cerastoderma chipolanum, "Cardium (Fragum) simrothi" = Trigoniocardia (Apiocardia) simrothi, "Cardium (Trachycardium) cestum" = Trachycardium (Phlogocardia) cestum
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Pseudochama chipolana, "Chama draconis" = Arcinella draconis
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"Lucina janus" = Pegophysema janus
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"Cardita (Carditamera) apotegea" = Carditamera, "Venericardia hadra" = Venericardia (Glyptoactis) hadra
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