USGS Loc. 3423 - Jackson Bluff [Jackson Bluff Fm] (Pliocene of the United States)

Also known as FGS Station 1/967

Where: Leon County, Florida (30.4° N, 84.6° W: paleocoordinates 30.5° N, 84.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jackson Bluff Formation (Alum Bluff Group), Late/Upper Pliocene (3.6 - 2.6 Ma)

• 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 = Jackson Bluff, Basinal/regional section name = Leon. Placed in Jackson Bluff Fm (and hence Late Pliocene) by enterer.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; unlithified, shelly/skeletal, blue, sandy claystone

• No reported geologic or paleoenvironmental data. Probably shallow water siliciclastic depositional environment.
• 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.

Size class: macrofossils

Reposited in the USNM

• Specimens are lodged in USNM collections. Collected by T.W. Vaughan (1900) and W.C. Mansfield (1925)

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59487: authorized by Austin Hendy, entered by Austin Hendy on 03.04.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Probably exhaustive for Mollusca. Certainly good nomenclatural treatment.
 Heterostropha - Architectonicidae
"Architectonica granulata" = Architectonica nobilis
"Architectonica granulata" = Architectonica nobilis Röding 1798 sundial
 Vanikoroidea - Eulimidae
 Neogastropoda - Cancellariidae
"Cancellaria (Trigonostoma) tenera" = Ventrilia tenerum
"Cancellaria (Trigonostoma) tenera" = Ventrilia tenerum Philippi 1848 snail
 Neogastropoda - Olividae
 Neogastropoda - Volutidae
"Aurinia mutabilis" = Volutifusus mutabilis2
"Aurinia mutabilis" = Volutifusus mutabilis2 Conrad 1834 volute
 Neogastropoda - Marginellidae
 Neogastropoda - Mangeliidae
"Mangilia gardnerae" = Cythara (Mangelia)
"Mangilia gardnerae" = Cythara (Mangelia) snail
 Neogastropoda - Conidae
"Conus adversarius" = Conus (Contraconus) adversarius
"Conus adversarius" = Conus (Contraconus) adversarius Conrad 1840 cone shell
 Sorbeoconcha - Cerithiopsidae
 Sorbeoconcha - Vermetidae
Petaloconchus sculpturatus Lea 1846 worm shell
 Sorbeoconcha - Rissoidae
"Rissoina (Zebina) johnsoni" = Zebina
"Rissoina (Zebina) johnsoni" = Zebina snail
 Sorbeoconcha - Naticidae
Tectonatica pusilla Say 1822 moon snail
 Neotaenioglossa - Calyptraeidae
Calyptraea centralis Conrad 1841 slipper shell
"Crepidula aculeata" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
Subspecies: C. aculeata spinosa
"Crucibulum auriculum" = Crucibulum (Crucibulum) auricula Gmelin 1791 slipper shell
Subspecies: C. auriculum imbricatum
Crepidula plana Say 1822 slipper shell
Crepidula fornicata Linnaeus 1758 slipper shell
Subspecies: C. fornicata ponderosa
 Cerithioidea - Turritellidae
Turritella subannulata turret shell
Subspecies: T. subannulata jacksonensis and. T. subannulata ochlockoneensis
 Trochoidea - Solariellidae
Solariella vaughani Mansfield 1930 snail
 Opisthobranchia - Cylichnidae
Acteocina canaliculata Say 1826 barrel-bubble
 Cardiida - Cardiidae
Protocardia jacksonense1, "Cardium (Cerastoderma) virginianum" = Planicardium virginianum1
"Cardium (Cerastoderma) virginianum" = Planicardium virginianum1 Conrad 1839 cockle
 Cardiida - Tellinidae
"Macoma virginiana" = Macoma (Macoma) virginiana1 Conrad 1866 tellin clam
Subspecies: M. virginiana coensis
 Cardiida - Semelidae
Abra subreflexa1 abra
Subspecies: A. subreflexa jacksonensis
Semele alumensis1 clam
Subspecies: S. alumensis leonensis
Semele carinata1 Conrad 1830 clam
Semele bellastriata1 Conrad 1837 clam
Semele purpurascens1 Gmelin 1791 clam
 Cardiida - Chamidae
Chama congregata1 Conrad 1833 jewel box
 Cardiida - Ungulinidae
 Cardiida - Veneridae
"Venus tridacnoides" = Mercenaria campechiensis tridacnoides1, Chione (Chione) erosa1, Chione (Chione) cortinaria1, "Chione (Lirophora) xesta" = Lirophora1, "Chione (Lirophora) sp." = Lirophora1, "Chione (Lirophora) ulocyma" = Lirophora (Panchione) ulocyma1, "Callocardia (Agriopoma) sayana" = Pitar morrhuanus1, Gemma magna1, "Gafrarium (Gouldia) metastriatum" = Gouldia1
"Venus tridacnoides" = Mercenaria campechiensis tridacnoides1 Lamarck 1818 quahog
Subspecies: V. tridacnoides rileyi
Chione (Chione) cortinaria1 Rogers and Rogers 1847 venus clam
"Chione (Lirophora) xesta" = Lirophora1 venus clam
"Chione (Lirophora) sp." = Lirophora1 Conrad 1863 venus clam
Subspecies: C. (L.) latilirata athleta
"Chione (Lirophora) ulocyma" = Lirophora (Panchione) ulocyma1 Dall 1895 venus clam
"Callocardia (Agriopoma) sayana" = Pitar morrhuanus1 Dall 1902 venus clam
Gemma magna1 Dall 1903 venus clam
"Gafrarium (Gouldia) metastriatum" = Gouldia1 venus clam
 Cardiida - Mactridae
Mulinia congesta1 Conrad 1833 clam
Spisula "sp. A"1 Gray 1837 clam
 Pholadida - Corbulidae
"Corbula (Caryocorbula) barrattiana" = Caryocorbula caribaea1, "Corbula (Caryocorbula) aff. cuneata" = Caryocorbula cuneata1, Corbula (Caryocorbula) nucleata1, Corbula (Caryocorbula) inaequalis1, "Corbula (Corbula) waltonensis" = Varicorbula disparilis1
"Corbula (Caryocorbula) barrattiana" = Caryocorbula caribaea1 d'Orbigny 1845 clam
Subspecies: C. (C.) barrattiana leonensis
"Corbula (Caryocorbula) aff. cuneata" = Caryocorbula cuneata1 Say 1824 clam
Corbula (Caryocorbula) nucleata1 clam
Subspecies: C. (C.) nucleata deadenensis
"Corbula (Corbula) waltonensis" = Varicorbula disparilis1 d'Orbigny 1853 clam
Subspecies: C. (C.) waltonensis rubisiniana
 Lucinida - Lucinidae
Phacoides (Bellucina) tuomeyi1, "Codakia (Jagonia) leonensis" = Ctena1, "Codakia (Jagonia) speciosa" = Ctena (Ctena) speciosa1, "Phacoides (Parvilucina) crenulatus" = Parvilucina crenulata1
"Codakia (Jagonia) leonensis" = Ctena1 clam
"Codakia (Jagonia) speciosa" = Ctena (Ctena) speciosa1 Rogers and Rogers 1837 clam
"Phacoides (Parvilucina) crenulatus" = Parvilucina crenulata1 Conrad 1840 clam
 Carditida - Astartidae
Astarte aff. symmetrica1 Conrad 1834 clam
Astarte (Ashtarotha) glenni1 clam
Subspecies: A. (A.) glenni jacksonensis
 Carditida - Carditidae
Venericardia (Pleuromeris) scituloides1, "Venericardia (Pleuromeris) tridentata" = Pleuromeris tridentata1, "Venericardia (Pleuromeris) perplana" = Pteromeris perplana1, "Venericardia (Cyclocardia) granulata" = Cyclocardia granulata1, Cardita (Carditamera) vaughani1
"Venericardia (Pleuromeris) tridentata" = Pleuromeris tridentata1 Say 1826 clam
Subspecies: V. (P.) tridentata decemcostata
"Venericardia (Pleuromeris) perplana" = Pteromeris perplana1 Dall 1903 clam
Subspecies: V. (P.) perplana abbreviata
"Venericardia (Cyclocardia) granulata" = Cyclocardia granulata1 Say 1824 clam
 Carditida - Crassatellidae
Crassinella lunulata1 Conrad 1834 clam
"Crassatellites (Crassatellites) gibbesii" = Eucrassatella (Eucrassatella) speciosa1 Adams 1854 clam
 Arcida - Glycymerididae
Glycymeris americana1, "Glycymeris subovata" = Costaglycymeris subovata1, "Glycymeris pectinata" = Tucetona pectinata1
Glycymeris americana1 Defrance 1826 clam
"Glycymeris subovata" = Costaglycymeris subovata1 Say 1824 clam
"Glycymeris pectinata" = Tucetona pectinata1 Gmelin 1791 clam
 Arcida - Noetiidae
"Arca (Noetia) incile" = Noetia incile1
"Arca (Noetia) incile" = Noetia incile1 Say 1824 clam
 Arcida - Arcidae
"Arca (Anadara) lienosa" = Anadara (Rasia) lienosa1, "Arca (Anadara) callicestosa" = Anadara callicestosa1, "Arca (Anadara) campsa" = Anadara campsa1
"Arca (Anadara) lienosa" = Anadara (Rasia) lienosa1 Say 1832 ark
"Arca (Anadara) callicestosa" = Anadara callicestosa1 Dall 1898 ark
"Arca (Anadara) campsa" = Anadara campsa1 Dall 1898 ark
 Pectinida - Anomiidae
Placunanomia plicata1 Tuomey and Holmes 1857 scallop
Subspecies: P. plicata floridana
Anomia simplex1 d'Orbigny 1845 jingle
 Pectinida - Plicatulidae
"Plicatula marginata" = Plicatula gibbosa1
"Plicatula marginata" = Plicatula gibbosa1 Lamarck 1801 scallop
 Pectinida - Pectinoidae
"Chlamys (Plagioctenium) comparilis" = Aequipecten comparilis1, Amusium mortoni1, "Chlamys (Plagioctenium) eboreus" = Carolinapecten eboreus1
"Chlamys (Plagioctenium) comparilis" = Aequipecten comparilis1 Tuomey and Holmes 1855 scallop
Subspecies: C. (P.) comparilis jacksonensis
Amusium mortoni1 Ravenel 1844 scallop
"Chlamys (Plagioctenium) eboreus" = Carolinapecten eboreus1 Conrad 1833 scallop
Subspecies: C. (P.) eboreus eboreus
 Ostreida - Pteriidae
Pteria multangula1 pearl oyster
 Ostreida - Gryphaeidae
"Ostrea haitensis" = Hyotissa haitensis1
"Ostrea haitensis" = Hyotissa haitensis1 Sowerby 1850 oyster
 Ostreida - Ostreidae
 Nuculanida - Nuculanidae
"Leda trochilia" = Nuculana1
"Leda trochilia" = Nuculana1 pointed nut clam
Subspecies: L. trochilia trochilia
 Nuculida - Nuculidae
"Nucula proxima" = Nucula (Nucula) proxima1 Say 1820 Atlantic Nut Clam
Nucula taphria1 Dall 1898 nut clam
 Gadilida - Gadilidae