USGS Loc. 7183 - Alum Bluff, lower bed [Chipola Fm] (Miocene of the United States)

Where: Liberty County, Florida (30.4° N, 85.0° W: paleocoordinates 30.8° N, 81.3° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Chipola Formation (Alum Bluff Group), Burdigalian (20.4 - 16.0 Ma)

• STRATIGRAPHIC POSITION: Lower bed. AGE: Direct date from 87Sr/86Sr isotope dating of fossils from elsewhere in Chipola Fm [=Burdigalian age].

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified, calcareous marl and unlithified, calcareous sandstone

• marls, sands, clays, for the most part unconsolidated, in places highly calcareous

Size class: macrofossils

Reposited in the USGS

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42367: authorized by Arnold Miller, entered by Karen Layou on 28.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Opisthobranchia - Haminoeidae
"Atys (Aliculastrum) obscuratus" = Atys obscuratus
"Atys (Aliculastrum) obscuratus" = Atys obscuratus Dall 1896 snail
present
 Opisthobranchia - Cylichnidae
Scaphander langdoni, Acteocina incisula
Scaphander langdoni snail
present
Acteocina incisula barrel-bubble
present; A. incisula curtoides
 Trochoidea - Phasianellidae
Tricolia affinis
Tricolia affinis snail
present; T. affinis obesus
 Trochoidea - Trochidae
Calliostoma grammaticum, Chlorostoma (Omphalius) exolutum
Calliostoma grammaticum Dall 1892 top snail
rare
 Heterostropha - Mathildidae
Gegania acutissima
Gegania acutissima snail
present
 Heterostropha -
Dolabella aldrichi
Dolabella aldrichi snail
rare
 Heterostropha - Acteonidae
Acteon korphys, Sulcularia prosulcata
Acteon korphys Gardner 1947 snail
rare
 Cerithioidea - Turritellidae
Turritella subgrundifera, "Turritella (Torcula) dalli" = Turritella dalli
Turritella subgrundifera Dall 1892 turret shell
abundant
"Turritella (Torcula) dalli" = Turritella dalli Gardner 1947 turret shell
present
 Sorbeoconcha - Caecidae
Caecum chipolanum
Caecum chipolanum Gardner 1947 snail
common
 Sorbeoconcha - Tornidae
Teinostoma phacoton n. sp.
Teinostoma phacoton n. sp. Gardner 1947 snail
present
 Sorbeoconcha - Naticidae
"Polinices (Neverita) chipolanus" = Neverita chipolanus, "Natica (Tectonatica) semen" = Tectonatica, "Natica (? Tectonatica) platabasis" = Tectonatica
"Polinices (Neverita) chipolanus" = Neverita chipolanus Dall 1892 moon snail
present
"Natica (Tectonatica) semen" = Tectonatica moon snail
rare
"Natica (? Tectonatica) platabasis" = Tectonatica moon snail
common
 Neogastropoda - Nassariidae
"Uzita anisonema" = Nassarius (Uzita)
"Uzita anisonema" = Nassarius (Uzita) snail
rare
 Neogastropoda - Cystiscidae
Marginella (Gibberula) chondra, Marginella (Persicula) calhounensis
Marginella (Gibberula) chondra Gardner 1947 snail
present
Marginella (Persicula) calhounensis Maury 1910 snail
rare
 Neogastropoda - Marginellidae
"Cypraeolina pyrenoides" = Marginella (Cypraeolina), "Marginella (Egouena) apalachee" = Prunum (Microspira) apalachee, Marginella (Serrata) coloba, Marginella (Serrata) nanna
"Cypraeolina pyrenoides" = Marginella (Cypraeolina) margin shell
rare
"Marginella (Egouena) apalachee" = Prunum (Microspira) apalachee Gardner 1947 margin shell
rare
Marginella (Serrata) coloba Gardner 1947 margin shell
present
Marginella (Serrata) nanna Gardner 1947 margin shell
rare
 Neogastropoda - Olividae
Olivella eleutheria
Olivella eleutheria olive snail
present
 Neogastropoda - Costellariidae
"Vexillum (Uromitra) mikkulum" = Uromitra
"Vexillum (Uromitra) mikkulum" = Uromitra ribbed mitre
rare
 Neogastropoda - Drilliidae
"Drillia" prion
"Drillia" prion snail
rare
 Neogastropoda - Conidae
Conus sulculus
Conus sulculus Dall 1896 cone shell
rare
 Neogastropoda - Mangeliidae
""Mangelia" klimakota" = Cythara (Mangelia)
""Mangelia" klimakota" = Cythara (Mangelia) snail
rare
 Neogastropoda - Clavatulidae
Clavatula panopla, Clavatula libertalis
Clavatula panopla snail
rare
 Sorbeoconcha - Thersiteidae
Orthaulax gabbi
Orthaulax gabbi Dall 1890 snail
common
Scaphopoda
 Gadilida - Gadilidae
"Cadulus (? Gadila) volvulus" = Gadila
"Cadulus (? Gadila) volvulus" = Gadila tusk shell
present
 Dentaliida - Dentaliidae
"Dentalium (Antalis) chipolanum" = Antalis
"Dentalium (Antalis) chipolanum" = Antalis tusk shell
rare
Bivalvia
 Nuculida - Nuculidae
Nucula chipolana
Nucula chipolana nut clam
common
 Arcida - Arcidae
"Arca (Diluvarca) mikkula" = Anadara (Diluvarca), "Arca (Diluvarca) staminata" = Anadara (Diluvarca), "Arca (Diluvarca) initiator" = Anadara (Diluvarca)
"Arca (Diluvarca) mikkula" = Anadara (Diluvarca) ark
common
"Arca (Diluvarca) staminata" = Anadara (Diluvarca) ark
common
"Arca (Diluvarca) initiator" = Anadara (Diluvarca) ark
rare
 Ostreida - Ostreidae
"Ostrea rugifera" = Cubitostrea rugifera
"Ostrea rugifera" = Cubitostrea rugifera Dall 1898 oyster
common
 Pectinida - Pectinoidae
"Pecten (Chlamys) chipolanus" = Lindapecten chipolanus
"Pecten (Chlamys) chipolanus" = Lindapecten chipolanus Dall 1898 scallop
rare
 Carditida - Carditidae
Venericardia (Pleuromeris) tellia, "Cardita (Carditamera) apotegea" = Carditamera
Venericardia (Pleuromeris) tellia Dall 1903 clam
present; V. (P.) tellia dasa
"Cardita (Carditamera) apotegea" = Carditamera clam
present
 Pholadida - Corbulidae
"Corbula chipolana" = Varicorbula chipolana, Corbula (Caryocorbula) sarda
"Corbula chipolana" = Varicorbula chipolana Gardner 1928 clam
present
 Cardiida - Chamidae
Pseudochama chipolana
Pseudochama chipolana jewel box
present
 Cardiida - Veneridae
"Venus langdoni" = Mercenaria langdoni, "Dosinia (Dosinidia) chipolana" = Dosinia chipolana, Chione chipolana, Pitaria floridana, "Macrocallista acuminata" = Macrocallista (Macrocallista) acuminata, "Gafrarium (Gouldia) erosum" = Gouldia, "Transenella utica" = Transennella
"Venus langdoni" = Mercenaria langdoni Dall 1900 quahog
common
"Dosinia (Dosinidia) chipolana" = Dosinia chipolana Dall 1903 venus clam
common
Chione chipolana Dall 1903 venus clam
present
Pitaria floridana venus clam
present; ? in occurrence table
"Macrocallista acuminata" = Macrocallista (Macrocallista) acuminata Dall 1903 venus clam
present
"Gafrarium (Gouldia) erosum" = Gouldia venus clam
common
"Transenella utica" = Transennella venus clam
present
 Cardiida - Erycinidae
Erycina scaptera
Erycina scaptera clam
rare
 Cardiida - Tellinidae
Tellina (Tellinella) chipolana, Tellina (Moerella) hypolispa
Tellina (Tellinella) chipolana Dall 1900 tellin clam
present
Tellina (Moerella) hypolispa Dall 1900 tellin clam
common
 Cardiida - Semelidae
Semele chipolana, Ervilia chipolana
Semele chipolana Dall 1900 clam
rare
Ervilia chipolana Dall 1898 clam
present
 Cardiida - Cardiidae
"Cardium (Cerastoderma) chipolanum" = Cerastoderma chipolanum, "Cardium (Fragum) burnsii" = Americardia burnsii, "Cardium (Fragum) sellardsi" = Fragum, "Cardium (Fragum) aliculum" = Trigoniocardia (Trigoniocardia) aliculum, "Cardium (Trachycardium) parile" = Nemocardium parile, "Cardium (Acanthocardia) propeciliare" = Acanthocardia
"Cardium (Cerastoderma) chipolanum" = Cerastoderma chipolanum Dall 1900 cockle
present; C. (C.) chipolanum alumen
"Cardium (Fragum) burnsii" = Americardia burnsii Dall 1900 cockle
present
"Cardium (Fragum) sellardsi" = Fragum cockle
rare
"Cardium (Fragum) aliculum" = Trigoniocardia (Trigoniocardia) aliculum Dall 1900 cockle
abundant
"Cardium (Trachycardium) parile" = Nemocardium parile Deshayes 1858 cockle
common
"Cardium (Acanthocardia) propeciliare" = Acanthocardia cockle
rare
 Lucinida - Lucinidae
"Phacoides (Linga) glenni" = Here glenni, "Phacoides (Miltha) xustris n. sp." = Eomiltha xustris, "Divaricella chipolana" = Divaricella (Divaricella) chipolana
"Phacoides (Linga) glenni" = Here glenni Dall 1903 clam
abundant
"Phacoides (Miltha) xustris n. sp." = Eomiltha xustris Gardner 1926 clam
rare
"Divaricella chipolana" = Divaricella (Divaricella) chipolana Dall 1903 clam
common