Well 43b Dade County (Pliocene of the United States)

Where: Dade County, Florida (25.7° N, 80.8° W: paleocoordinates 25.8° N, 80.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Tamiami Formation, Pliocene (5.3 - 2.6 Ma)

• Determined from cores from test wells drilled by US Corps of Engineers in 1950

•15 ft below sea level

•Age determination revised in more recent papers (see Lithostratigraphy, Petrography,

•Biostratigraphy, and Strontium-Isotope

•Stratigraphy of the Surficial Aquifer System

•of Western Collier County, Florida, Edwards et al., 1998, USGS Open-File Report 98-205)

• formation-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, silty, sandy marl

• Changes laterally from shelly marl to soft silty limestone to the silty sand and clayey marl

Size class: mesofossils

Collection methods: core

• observed from cores

Primary reference: M. C. Schroeder and H. Klein. 1954. Geology of the Western Everglades Area, Southern Florida. United States Geological Survey Circular 314 [A. Miller/K. Bulinski/P. Wagner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 75025: authorized by Arnold Miller, entered by Kate Bulinski on 13.09.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
Pecten sp. Müller 1776 scallop
 Ostreida - Ostreidae
"Ostrea sculpturata" = Conradostrea sculpturata
"Ostrea sculpturata" = Conradostrea sculpturata Conrad 1840 oyster
 Carditida - Carditidae
 Cardiida - Veneridae
"Transenella sp." = Transennella
"Transenella sp." = Transennella Dall 1884 venus clam
 Cardiida - Donacidae
Donax fossor Say 1822 clam
 Cardiida - Cardiidae
"Cardium cf. robustum" = Dinocardium robustum
"Cardium cf. robustum" = Dinocardium robustum Lightfoot 1786 cockle
Gastropoda
 Neogastropoda - Olividae
"Oliva aff. sayana" = Oliva (Ispidula) sayana, "Oliva mutica" = Olivella mutica
"Oliva aff. sayana" = Oliva (Ispidula) sayana Ravenel 1834 olive snail
"Oliva mutica" = Olivella mutica Say 1822 olive snail
 Sorbeoconcha - Turritellidae
Turritella pontoni turret shell
Turritella cookei turret shell
subspecies gladeensis