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.
• member-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, white, sandy, cherty/siliceous limestone
Size class: macrofossils
Preservation: cast, mold/impression, permineralized, replaced with silica
Collection methods: collections from multiple beds in the lower section of the River Junction outcrop.
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 61111: authorized by Arnold Miller, entered by Chad Ferguson on 29.05.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Rapana vaughani Mansfield 1937 murex snail | |
Bivalvia | |
"Modiolus (Botula) cinnamomeus" = Botula cinnamomeus
"Modiolus (Botula) cinnamomeus" = Botula cinnamomeus Lamarck 1819 mussel | |
"Antigona (Artena) ? shepardi" = Artena
"Antigona (Artena) ? shepardi" = Artena venus clam | |
"Cardium (Trachycardium) ? hernandoense" = Trachycardium, "Cardium (Trachycardium) ? brooksvillense" = Trachycardium
"Cardium (Trachycardium) ? hernandoense" = Trachycardium cockle | |
Tellina (Tellinella) ? silicata tellin clam |