USGS Loc. 4993 - Holland [Jackson Bluff Fm]: Late/Upper Pliocene, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula aculeata (Gmelin 1791)
recombined as Bostrycapulus aculeatus
Subspecies: C. aculeata costata
Crucibulum constrictum (Conrad 1842)
recombined as Crucibulum (Dispotaea) constrictum
Gastropoda - Turritellidae
Turritella etiwanensis
Bivalvia - Carditida - Crassatellidae
Crassatellites (Crassatellites) meridionalis Mansfield 1929
Mansfield 1932
Bivalvia - Carditida - Carditidae
Cardita (Carditamera) arata (Conrad 1832)
Mansfield 1932
recombined as Carditamera arata
Cardita (Carditamera) vaughani Dall 1903
Mansfield 1932
Venericardia (Cyclocardia) granulata (Say 1824)
Mansfield 1932
recombined as Cyclocardia granulata
Venericardia (Pleuromeris) scituloides Olsson 1914
Mansfield 1932
Bivalvia - Lucinida - Lucinidae
Lucina chrysostoma Philippi 1845
Mansfield 1932
synonym of Anodontia alba
Bivalvia - Arcida - Arcidae
Arca (Anadara) idonea Conrad 1832
Mansfield 1932
recombined as Dallarca idonea
Subspecies: Arca (Anadara) idonea harveyensis
Barbatia (Granoarca) propatula (Conrad 1844)
Mansfield 1932
recombined as Barbatia (Barbatia) propatula
Bivalvia - Pectinida - Pectinidae
Pecten (Pecten) leonensis
Mansfield 1932
Chlamys (Plagioctenium) comparilis (Tuomey and Holmes 1855)
Mansfield 1932
recombined as Aequipecten comparilis
Scaphopoda - Dentaliida - Dentaliidae
Dentalium (Dentalium) carolinense
see common names

Geography
Country:United States State/province:Florida County:Leon
Coordinates: 31.0° North, 84.5° West (view map)
Paleocoordinates:31.1° North, 83.9° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Neogene Epoch:Pliocene
Stage:Piacenzian 10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Pliocene
Age range of interval:3.60000 - 2.58000 m.y. ago
Stratigraphy
Geological group:Alum Bluff Formation:Jackson Bluff
Stratigraphic resolution:group of beds
Stratigraphy comments: Lower upper Miocene bed. Ecphora Zone of Choctawhatchee Formation, Alum Bluff Group. The Ecphora zone, from which the collection is derived, is typically exposed in the upper fossiliferous bed unconformably overlying the Chipola Formation at Alum Bluff, Apachicola River. The bed ranges in thickness from 15-25 ft at different places along the bluff. Late Miocene age based on recent lithostratigraphy. Local section name = Holland, Basinal/regional section name = Leon. Placed in Jackson Bluff Fm (and hence Late Pliocene) by enterer.
Lithology and environment
Primary lithology:shelly/skeletal,blue unlithified sandy claystone
Includes fossils?Y
Lithology description: The sediments comprising the Ecphora Zone consist of very fossiliferous, sandy clay, which is bluish where unweathered. Lithification data not reported, but all figured specimens appear to be free of matrix so an unlithified classification is assigned.
Environment:coastal indet.
Geology comments: No reported geologic or paleoenvironmental data. Probably shallow water siliciclastic depositional environment.
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:USNM
Collection method comments: Specimens are lodged in USNM collections. Collected by G.C. Matson (1908)
Taxonomic list comments:Probably exhaustive for Mollusca. Certainly good nomenclatural treatment.
Metadata
Database number:59489
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:GCP,marine invertebrate
Created:2006-04-03 18:49:17 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-04-03 18:49:17
Creative Commons license:CC BY
Reference information

Primary reference:

17060. W. C. Mansfield. 1930. Miocene gastropods and scaphopods of the Choctawatchee Formation of Florida. Florida State Geological Survey Bulletin 3 [A. Miller/A. Hendy/A. Hendy]

Secondary references:

17094 W. C. Mansfield. 1932. Miocene pelecypods of the Choctawatchee Formation of Florida. Florida State Geological Survey Bulletin 8 [A. Miller/A. Hendy]