USGS Loc. 10658 - Shell Bluff [Shoal River Fm]: Serravallian, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea centralis (Conrad 1841)
rare
Gastropoda - Naticidae
Polinices (Neverita) eucallosus
original and current combination Neverita
present
Polinices judsoni (Maury 1910)
original and current combination Natica judsoni
present
Bivalvia - Arcida - Arcidae
Arca (Diluvarca) waltonia
spelled with current rank as Anadara (Diluvarca)
present
Bivalvia - Lucinida - Lucinidae
Divaricella waltonia
rare
Phacoides (Parvilucina) vaughani
spelled with current rank as Parvilucina
rare
Lucina santarosana Dall 1903
recombined as Pegophysema santarosana
rare
Bivalvia - Pholadida - Corbulidae
Corbula (Caryocorbula) seminella
present
Bivalvia - Cardiida - Kelliidae
Bornia dodona
rare
Bivalvia - Cardiida - Chamidae
Pseudochama (Echinochama) arcinella (Linnaeus 1767)
recombined as Arcinella arcinella
rare
Bivalvia - Cardiida - Cardiidae
Cardium (Cerastoderma) waltonianum Dall 1900
present
Bivalvia - Cardiida - Tellinidae
Tellina (Moerella) piesa Gardner 1947
rare
Macoma (Psammacoma) torynoides Gardner 1947
recombined as Psammacoma torynoides
rare
Bivalvia - Carditida - Crassatellidae
Crassatellites (Crassinella) tanicus
original and current combination Crassinella
rare
Bivalvia - Nuculida - Nuculidae
Nucula chipolana
rare; N. chipolana waltonia
Bivalvia - Nuculanida - Nuculanidae
Leda polychoa
synonym of Nuculana
present
see common names

Geography
Country:United States State/province:Florida County:Walton
Coordinates: 30.7° North, 86.1° West (view map)
Paleocoordinates:31.0° North, 83.4° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Miocene
Stage:Serravallian 10 m.y. bin:Cenozoic 5
Key time interval:Serravallian
Age range of interval:13.82000 - 11.62000 m.y. ago
Age estimate:12.4 Ma (Sr isotope)
Stratigraphy
Geological group:Alum Bluff Formation:Shoal River
Stratigraphic resolution:bed
Stratigraphy comments: 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.
Lithology and environment
Primary lithology: unlithified calcareous marl
Secondary lithology: unlithified calcareous sandstone
Lithology description: marls, sands, clays, for the most part unconsolidated, in places highly calcareous
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USGS
Metadata
Database number:42872
Authorizer:A. Miller Enterer:K. Layou
Modifier:A. Hendy Research group:GCP,marine invertebrate
Created:2004-08-06 08:29:16 Last modified:2012-12-05 20:59:17
Access level:the public Released:2004-08-06 08:29:16
Creative Commons license:CC BY
Reference information

Primary reference:

11206. 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]