Where: Gadsden County, Florida (30.7° N, 84.8° W: paleocoordinates 31.0° N, 79.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Tampa Limestone Member (Arcadia Formation), Chattian to Chattian (28.1 - 20.4 Ma)
• LITHOSTRATIGRAPHY: Formerly referred to as the Tampa Limestone. Scott et al. (2001) assign the Tampa to the rank of member and place it in the Arcadia Formation. AGE: Mansfield suggests age equivalencies (based primarily on faunal similarities) with the Chipola Fm., the Trent Marl of North Carolina, and the Anguilla Fm. of Anguilla. Placed here into the Chattian-Aquitanian on the basis of most recent chronostratigraphy.
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, white, sandy, cherty/siliceous limestone
Size class: mesofossils
Preservation: cast, mold/impression, permineralized, replaced with silica
Primary reference: W. C. Mansfield. 1937. Molluscs of the Tampa and Suwannee Limestones. Geological Bulletin, State of Florida Department of Conservation 15:1-334 [A. Miller/C. Ferguson/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 61120: authorized by Arnold Miller, entered by Chad Ferguson on 29.05.2006, edited by Mark Uhen
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Echinocardium depressum n. sp.
Echinocardium depressum n. sp. heart urchin | |
Bivalvia | |
Modiolus blandus mussel | |
| |
"Ostrea aff. antiguensis" = Pycnodonte (Crenostrea) antiguensis
"Ostrea aff. antiguensis" = Pycnodonte (Crenostrea) antiguensis Brown 1913 oyster | |
"Arca (Arca) ? umbonata" = Lamarcka imbricata
"Arca (Arca) ? umbonata" = Lamarcka imbricata Bruguière 1789 clam | |
Divaricella sp. Martens 1880 clam | |
Semele ? silicata clam | |
Cardium (Trigoniocardia) gadsdenense Mansfield 1937 cockle | |
"Panope aff. goldfussil" = Panopea
"Panope aff. goldfussil" = Panopea clam | |
Gastropoda | |
Scaphander ? ballistus snail |