USGS Loc. 3733 - Shell Bluff [Shoal River Fm]: Serravallian, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Arcida - Glycymerididae
Glycymeris waltonensis Gardner 1947
recombined as Costaglycymeris waltonensis
rare
Bivalvia - Arcida - Arcidae
Arca (Diluvarca) waltonia
spelled with current rank as Anadara (Diluvarca)
present
Bivalvia - Pectinida - Anomiidae
Anomia floridana
present
Bivalvia - Carditida - Crassatellidae
Crassatellites (Scambula) densus (Dall 1900)
recombined as Crassatella densus
rare
Crassatellites (Crassinella) tanicus
original and current combination Crassinella
present
Bivalvia - Lucinida - Lucinidae
Phacoides (Pseudomiltha) paranodonta
original and current combination Pseudomiltha
rare
Phacoides (Parvilucina) vaughani
spelled with current rank as Parvilucina
common
Bivalvia - Pholadida - Corbulidae
Corbula waltonensis Gardner 1928
synonym of Varicorbula disparilis
rare
Corbula (Caryocorbula) whitfieldi Brown 1905
recombined as Cuneocorbula whitfieldi
rare; ? in occurrence table
Bivalvia - Cardiida - Sportellidae
Sportella lioconcha
rare
Bivalvia - Cardiida - Cardiidae
Cardium (Cerastoderma) waltonianum Dall 1900
rare
Bivalvia - Cardiida - Semelidae
Ervilia valhosierr Gardner 1928
present
Ervilia planata Dall 1898
rare; ? in occurrence table
Bivalvia - Cardiida - Donacidae
Donax sp. Linnaeus 1758
rare
Bivalvia - Cardiida - Tellinidae
Tellina (Moerella) piesa Gardner 1947
rare
Tellina (Tellinella) waltonensis n. sp. Gardner 1947
present
Bivalvia - Cardiida - Psammobiidae
Psammobia bowdichi
spelled with current rank as Gari (Psammobia)
rare; ? in occurrence table
Bivalvia - Cardiida - Ungulinidae
Diplodonta acclinis (Conrad 1832)
rare
Bivalvia - Cardiida - Veneridae
Chione (Lirophora) funiakensis Gardner 1947
recombined as Lirophora (Panchione) funiakensis
rare; ? in occurrence table
Dosinia (Dosinidia) dalli Gardner 1947
present
Callocardia (Agriopoma) prosayana
rare
Macrocallista (Paradione) waltonensis
spelled with current rank as Pitar (Paradione)
rare
Bivalvia - Cardiida - Mactridae
Spisula (Hemimactra) craspedota Gardner 1947
recombined as Spisula craspedota
present
Bivalvia - Thraciida - Periplomatidae
Periploma discus Stearns 1890
rare
Bivalvia - Nuculanida - Nuculanidae
Leda basilissa n. sp.
synonym of Nuculana
rare
Leda polychoa
synonym of Nuculana
rare; L. polychoa defuniak
Gastropoda - Opisthobranchia - Cylichnidae
Acteocina sphalera
present
Gastropoda - Planaxidae
Fossarus florius
rare
Gastropoda - Naticidae
Natica (Naticarius) precursor Gardner 1947
recombined as Naticarius precursor
rare
Polinices (Neverita) eucallosus
original and current combination Neverita
present
Sinum waltonense
rare
Gastropoda - Tornidae
Teinostoma nanum (Lea 1833)
recombined as Teinostoma nana
rare; T. nanum eonanum n. subsp.
Gastropoda - Caecidae
Caecum pararegulare n. sp.
rare
Gastropoda - Neogastropoda - Columbellidae
Mitrella tytha
rare
Gastropoda - Neogastropoda - Nassariidae
Uzita waltonensis (Gardner 1936)
recombined as Nassarius (Uzita) waltonensis
rare
Gastropoda - Neogastropoda - Olividae
Oliva liodes Dall 1903
recombined as Oliva (Omogymna) liodes
rare; O. liodes waltoniana
Gastropoda - Neotaenioglossa - Calyptraeidae
Crucibulum chipolanum (Dall 1892)
recombined as Crucibulum (Crucibulum) chipolanum
rare; ? in occurrence table, C. chipolanum dodoneum
Crepidula fornicata (Linnaeus 1758)
present; ? in occurrence table
Calyptraea centralis (Conrad 1841)
rare
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 - 11.63000 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:42892
Authorizer:A. Miller Enterer:K. Layou
Modifier:A. Hendy Research group:GCP,marine invertebrate
Created:2004-08-06 14:32:16 Last modified:2012-12-05 21:04:07
Access level:the public Released:2004-08-06 14:32:16
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]