Where: Walton County, Florida (30.6° N, 86.0° W: paleocoordinates 31.0° N, 83.4° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Shoal River Formation (Alum Bluff Group), Serravallian (13.8 - 11.6 Ma)
• STRATIGRAPHIC RELATIONS: From the Shoal River Fm of the Alum Bluff, which lies between the Chipola Fm (Early Miocene) and the Chochtawatchee Fm [Early Pliocene). AGE: Early Miocene (Gardener 1947); Middle Miocene in Vokes (1990) and Portell et al. (2006), although Jones et al. (1993) reports 87Sr/86Sr ratios that yielded average age estimates of 12.4 Ma [=Serravalian]. STRATIGRAPHIC POSITION: From unknown position within formation.
• bed-level stratigraphic resolution
Environment/lithology: marine; unlithified, calcareous marl and unlithified, calcareous sandstone
Size class: macrofossils
Reposited in the USGS
• collection made by the Geological Survey of the State of FL and presented to 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 43049: authorized by Arnold Miller, entered by Karen Layou on 09.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
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Diodora daidala n. sp.
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"Teinostoma mekon n. sp." = Teinostoma (Idioraphe) mekon
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Cancellaria eucheea n. sp.
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Caricella (Atraktus) florea n. sp.
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"Marginella (Volvarina) eobella n. sp." = Volvarina
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"Vexillum (Uromitra) ? triptum" = Uromitra
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"Drillia" haraldi n. sp., Agladrillia agla n. sp.
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"Terebra (Strioterebrum) psesta n. sp." = Strioterebrum
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"Cypraea (Cypraeorbis) tapeina n. sp." = Loxacypraea chilona
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"Lemintina papulosa" = Serpulorbis papulosus
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Crassispira loxa n. sp.
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