USGS Loc. 3732 - Dave Adams Mill Creek [Shoal River Fm]: Serravallian, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Scaphopoda - Gadilida - Gadilidae
Cadulus (Gadila) spiniformis Gardner 1947
rare
Bivalvia - Arcida - Glycymerididae
Glycymeris waltonensis n. sp. Gardner 1947
recombined as Costaglycymeris waltonensis
abundant
Bivalvia - Arcida - Arcidae
Arca (Diluvarca) santarosana (Dall 1898)
recombined as Anadara (Diluvarca) santarosana
present
Bivalvia - Carditida - Crassatellidae
Crassatellites (Scambula) densus (Dall 1900)
recombined as Crassatella densus
present
Bivalvia - Lucinida - Lucinidae
Phacoides (Parvilucina) flumenvadosa
spelled with current rank as Parvilucina
rare
Bivalvia - Pholadida - Corbulidae
Corbula (Caryocorbula) seminella
rare
Bivalvia - Cardiida - Cardiidae
Cardium (Trachycardium) plectopleura
original and current combination Trachycardium
rare
Bivalvia - Cardiida - Tellinidae
Tellina (Moerella) piesa Gardner 1947
rare
Bivalvia - Cardiida - Veneridae
Chione (Lirophora) trimeris Gardner 1947
recombined as Lirophora (Lirophora) trimeris
present
Chione (Lirophora) ceramota n. sp. Gardner 1947
recombined as Lirophora (Lirophora) ceramota
rare
Bivalvia - Cardiida - Chamidae
Pseudochama (Echinochama) arcinella (Linnaeus 1767)
recombined as Arcinella arcinella
rare
Bivalvia - Nuculanida - Nuculanidae
Leda polychoa
synonym of Nuculana
rare
Gastropoda - Liotiidae
? Didianema waltonia n. sp.
rare
Gastropoda - Opisthobranchia - Cylichnidae
Acteocina sphalera
rare
Acteocina rusa
rare
Gastropoda - Turritellidae
Turritella (Torcula) waltonensis
original and current combination Torcula
common
Gastropoda - Naticidae
Polinices judsoni (Maury 1910)
original and current combination Natica judsoni
present
Natica (Tectonatica) semen
original and current combination Tectonatica
rare
Sinum waltonense
rare
Gastropoda - Neogastropoda - Costellariidae
? Knefastia waltonia
rare
Gastropoda - Neogastropoda - Columbellidae
Strombina lissa
rare
Strombina waltonia Gardner 1947
recombined as Strombina (Strombina) waltonia
present
Gastropoda - Neogastropoda - Nassariidae
Uzita waltonensis (Gardner 1936)
recombined as Nassarius (Uzita) waltonensis
rare
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria runchaena n. sp. Gardner 1947
recombined as Cancellaria (Massyla) runchaena
rare
Cancellaria waltoniana
rare
Cancellaria pinguis Gardner 1947
recombined as Cancellaria (Cancellaria) pinguis
rare
Gastropoda - Neogastropoda - Olividae
Oliva liodes Dall 1903
recombined as Oliva (Omogymna) liodes
rare; O. liodes waltoniana
Gastropoda - Neogastropoda - Turridae
Hemipleurotoma eileta Gardner 1938
synonym of Gemmula vaningeni
rare
Polystira (Pleuroliria) tenagos Gardner 1947
recombined as Polystira tenagos
rare
Gastropoda - Neogastropoda - Conidae
Conus waltonensis Aldrich 1903
common
Conus submoniliferus n. sp. Gardner 1937
present
Gastropoda - Neogastropoda - Drilliidae
"Drillia" waltoniana
rare
Eumetadrillia rabdotacona Gardner 1947
recombined as Agladrillia (Eumetadrillia) rabdotacona
present
Crassispira calligonoides Gardner 1938
recombined as Crassispira (Hindsiclava) calligonoides
rare
Gastropoda - Neogastropoda - Terebridae
Terebra (Strioterebrum) waltonensis n. sp. Gardner 1947
recombined as Strioterebrum waltonensis
rare; also T. (S.) waltonensis tribaka (present)
Gastropoda - Neogastropoda - Volutidae
Caricella (Atraktus) pycnoplecta
rare
Gastropoda - Neotaenioglossa - Calyptraeidae
Crucibulum grande
rare; ? in occurrence table
Crucibulum constrictum (Conrad 1842)
recombined as Crucibulum (Dispotaea) constrictum
rare; C. constrictum conjuge n. subsp.
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:42813
Authorizer:A. Miller Enterer:K. Layou
Modifier:A. Hendy Research group:GCP,marine invertebrate
Created:2004-08-05 13:52:49 Last modified:2012-12-05 20:53:18
Access level:the public Released:2004-08-05 13:52:49
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]