Also known as Mansfield locality # 21
Where: Gadsden County, Florida (30.7° N, 84.8° W: paleocoordinates 31.1° N, 80.8° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Tampa Limestone Member (Arcadia Formation), Early/Lower Miocene (23.0 - 16.0 Ma)
• 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.
•
•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.
•
• member-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 61117: authorized by Arnold Miller, entered by Chad Ferguson on 29.05.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Gastropoda | |
Turritella ? tampae Heilprin 1887 turret shell | |
Ampullina (Ampullinopsis) ? amphora Heilprin 1887 snail | |
Bivalvia | |
Chlamys (Chlamys) crocus scallop | |
"Arca (Arca) umbonata" = Lamarcka imbricata, Anadara ? tarponensis
"Arca (Arca) umbonata" = Lamarcka imbricata Bruguière 1789 clam | |
Venus ? halidona, "Antigona (Artena) shepardi" = Artena
Venus ? halidona venus clam
"Antigona (Artena) shepardi" = Artena venus clam | |
"Cardium (Trachycardium) ? hernandoense" = Trachycardium, "Cardium (Trachycardium) ? brooksvillense" = Trachycardium
"Cardium (Trachycardium) ? hernandoense" = Trachycardium cockle | |
Semele ? sardonica Dall 1890 clam |