USGS Loc. 7257 - Tenmile Creek, Sexton's marl bed [Chipola Fm] (Miocene of the United States)

Where: Calhoun County, Florida (30.4° N, 85.2° W: paleocoordinates 30.8° N, 81.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• 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 42281: authorized by Arnold Miller, entered by Karen Layou on 27.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Arcidae
"Arca (Diluvarca) hypomela" = Anadara (Diluvarca), "Arca (Diluvarca) santarosana" = Anadara (Diluvarca) santarosana
"Arca (Diluvarca) hypomela" = Anadara (Diluvarca) ark
rare
"Arca (Diluvarca) santarosana" = Anadara (Diluvarca) santarosana Dall 1898 ark
present; A. (D.) santarosana geraetera
 Pectinida - Pectinoidae
"Pecten (Chlamys) chipolanus" = Lindapecten chipolanus
"Pecten (Chlamys) chipolanus" = Lindapecten chipolanus Dall 1898 scallop
rare; ? in occurrence table
 Carditida - Carditidae
"Venericardia hadra" = Venericardia (Glyptoactis) hadra, "Cardita (Carditamera) apotegea" = Carditamera, Venericardia (Pleuromeris) tellia
"Venericardia hadra" = Venericardia (Glyptoactis) hadra Dall 1903 clam
rare
"Cardita (Carditamera) apotegea" = Carditamera clam
rare
Venericardia (Pleuromeris) tellia Dall 1903 clam
rare
 Pholadida - Corbulidae
"Corbula (Bothrocorbula) synarmostes" = Bothrocorbula synarmostes, Corbula (Caryocorbula) semenoides, "Corbula chipolana" = Varicorbula chipolana
"Corbula (Bothrocorbula) synarmostes" = Bothrocorbula synarmostes Dall 1898 clam
present
"Corbula chipolana" = Varicorbula chipolana Gardner 1928 clam
present
 Cardiida - Erycinidae
Erycina undosa clam
rare
 Cardiida - Chamidae
"Chama draconis" = Arcinella draconis
"Chama draconis" = Arcinella draconis Dall 1903 jewel box
rare
 Cardiida - Mactridae
"Crassatellites (Crassinella) triangulatus" = Cymbophora triangulata
"Crassatellites (Crassinella) triangulatus" = Cymbophora triangulata Waring 1917 clam
present
 Cardiida - Ungulinidae
 Cardiida - Veneridae
"Chione (Lirophora) burnsii" = Lirophora, "Dosinia (Dosinidia) chipolana" = Dosinia chipolana, Pitaria floridana, "Gafrarium (Gouldia) erosum" = Gouldia, "Transenella chipolana" = Transennella, "Macrocallista (Paradione) maculata" = Macrocallista maculata
"Chione (Lirophora) burnsii" = Lirophora venus clam
present
"Dosinia (Dosinidia) chipolana" = Dosinia chipolana Dall 1903 venus clam
rare; ? in occurrence table
Pitaria floridana venus clam
present; ? in occurrence
"Gafrarium (Gouldia) erosum" = Gouldia venus clam
present; G. (G.) erosum bolteni, ? in occurrence table
"Transenella chipolana" = Transennella venus clam
rare
"Macrocallista (Paradione) maculata" = Macrocallista maculata Linnaeus 1758 venus clam
present
 Cardiida - Tellinidae
Tellina (Moerella) acosmita Dall 1900 tellin clam
present
Macoma (Psammacoma) marmorea n. sp. Gardner 1947 tellin clam
present
 Cardiida - Semelidae
Ervilia chipolana Dall 1898 clam
present
 Cardiida - Cardiidae
"Cardium (Laevicardium) compressum" = Laevicardium compressum, "Cardium (Fragum) burnsii" = Americardia burnsii, "Cardium (Cerastoderma) chipolanum" = Cerastoderma chipolanum
"Cardium (Laevicardium) compressum" = Laevicardium compressum Dall 1900 cockle
present
"Cardium (Fragum) burnsii" = Americardia burnsii Dall 1900 cockle
rare
"Cardium (Cerastoderma) chipolanum" = Cerastoderma chipolanum Dall 1900 cockle
rare
 Poromyida - Verticordiidae
 Poromyida - Spheniopsidae
 Lucinida - Lucinidae
"Phacoides (Parvilucina) sphaeriolus" = Parvilucina, Phacoides (Lucinisca) calhounensis, "Codakia (Jagonia) erosa" = Ctena
"Phacoides (Parvilucina) sphaeriolus" = Parvilucina clam
present; also P. (P.) sphaeriolus angaleus n. subsp. (present)
"Codakia (Jagonia) erosa" = Ctena clam
rare
 Nuculida - Nuculidae
Nucula chipolana nut clam
common
 Protobranchia - Nuculanidae
"Leda canonica" = Saccella canonica, "Leda proteracuta n. sp." = Nuculana
"Leda canonica" = Saccella canonica Dall 1890 pointed nut clam
present
"Leda proteracuta n. sp." = Nuculana pointed nut clam
present; also L. proteracuta dystakta (rare), L. proteracuta leita n. subsp. (present), and L. proteracuta diamesa n. subsp. (present)
 Protobranchia - Yoldiidae
Yoldia frater clam
present
Gastropoda
 Thecosomata - Cavoliniidae
Vaginella chipolana Dall 1892 snail
present
 Opisthobranchia - Retusidae
"Volvula oxytata" = Volvulella (Volvulella) oxytata
"Volvula oxytata" = Volvulella (Volvulella) oxytata Bush 1885 snail
rare
 Opisthobranchia - Cylichnidae
Acteocina incisula barrel-bubble
both rare; A. incisula curtoides and A. incisula kolos
Acteocina fischeri barrel-bubble
rare
 Opisthobranchia - Haminoeidae
Haminoea pompholyx snail
rare [entered as Haminaea pompholyx]
 Neogastropoda - Olividae
Olivella oryzoides olive snail
present
 Neogastropoda - Columbellidae
Mitrella oryzoides Gardner 1947 snail
rare
 Neogastropoda - Nassariidae
"Uzita cinclis" = Nassarius (Uzita) cinclis Gardner 1944 snail
rare
Engoniophos glyptus snail
rare
 Neogastropoda - Mitridae
 Neogastropoda - Mangeliidae
""Cythara" barbadoides" = Cytharella barbadoides, ? Ithycythara radinos, "Mangelia sextoni n. sp." = Cythara (Mangelia)
""Cythara" barbadoides" = Cytharella barbadoides Gardner 1938 snail
rare
"Mangelia sextoni n. sp." = Cythara (Mangelia) snail
rare
 Naticoidea - Naticidae
"Natica (Naticarius) precursor" = Naticarius precursor, "Natica (Tectonatica) semen" = Tectonatica
"Natica (Naticarius) precursor" = Naticarius precursor Gardner 1947 moon snail
rare
"Natica (Tectonatica) semen" = Tectonatica moon snail
rare
 Calyptraeoidea - Calyptraeidae
Calyptraea centralis Conrad 1841 slipper shell
rare
 Heterostropha - Acteonidae
 Fissurelloidea - Fissurellidae
Diodora chipolana Dall 1892 snail
rare
Scaphopoda
 Dentaliida - Gadilinidae
"Dentalium (Episiphon) schumoi" = Episiphon
"Dentalium (Episiphon) schumoi" = Episiphon tusk shell
rare
 Gadilida - Gadilidae
"Cadulus (Polyschides) lobion" = Polyschides
"Cadulus (Polyschides) lobion" = Polyschides tusk shell
present