USGS Loc. 7055 - Old Senterfeit Mill [Oak Grove Sand] (Miocene of the United States)

Where: Walton County, Florida (31.0° N, 86.5° W: paleocoordinates 31.4° N, 82.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• LITHOSTRATIGRAPHY: From the Oak Grove Fm of the Alum Bluff Gp, for which lithostratigraphic relationships are not discussed. AGE: late Early Miocene, on the basis of macro fossil biostratigraphy. STRATIGRAPHIC RELATIONS: From unknown position within formation.

• formation-level stratigraphic resolution

Environment/lithology: marine; unlithified, gray, green, calcareous sandstone

• gray-green sands, 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 42682: authorized by Arnold Miller, entered by Karen Layou on 04.08.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
"Glycymeris drymanos" = Costaglycymeris drymanos
"Glycymeris drymanos" = Costaglycymeris drymanos Gardner 1926 clam
common
 Arcida - Arcidae
"Arca (Diluvarca) santarosana" = Anadara (Diluvarca) santarosana
"Arca (Diluvarca) santarosana" = Anadara (Diluvarca) santarosana Dall 1898 ark
present
 Carditida - Crassatellidae
"Crassatellites (Scambula) densus" = Crassatella densus
"Crassatellites (Scambula) densus" = Crassatella densus Dall 1900 clam
rare
 Carditida - Carditidae
"Venericardia himerta" = Glyptoactis (Glyptoactis) himerta
"Venericardia himerta" = Glyptoactis (Glyptoactis) himerta Dall 1903 clam
rare
 Lucinida - Lucinidae
"Phacoides (Pseudomiltha) paranodonta" = Pseudomiltha, "Lucina santarosana" = Pegophysema santarosana, "Phacoides (Parvilucina) flumenvadosa" = Parvilucina
"Phacoides (Pseudomiltha) paranodonta" = Pseudomiltha clam
rare; ? in occurrence table
"Lucina santarosana" = Pegophysema santarosana Dall 1903 clam
rare
"Phacoides (Parvilucina) flumenvadosa" = Parvilucina clam
rare; ? in occurrence table
 Pholadida - Corbulidae
"Corbula waltonensis" = Varicorbula disparilis
"Corbula waltonensis" = Varicorbula disparilis d'Orbigny 1853 clam
present
 Cardiida - Cardiidae
"Cardium (Cerastoderma) taphrium" = Dinocardium taphrium, "Cardium (Trachycardium) malacum" = Trachycardium, "Cardium (Cerastoderma) panastrum" = Cerastoderma
"Cardium (Cerastoderma) taphrium" = Dinocardium taphrium Dall 1900 cockle
rare
"Cardium (Trachycardium) malacum" = Trachycardium cockle
rare
"Cardium (Cerastoderma) panastrum" = Cerastoderma cockle
rare
 Cardiida - Veneridae
"Chione (Lirophora) glyptocyma" = Lirophora, "Venus prodroma n. sp." = Mercenaria prodroma, "Macrocallista (Paradione) maculata" = Macrocallista maculata
"Chione (Lirophora) glyptocyma" = Lirophora venus clam
abundant; C. (L.) glyptocyma daphne n. subsp.
"Venus prodroma n. sp." = Mercenaria prodroma Gardner 1947 quahog
abundant
"Macrocallista (Paradione) maculata" = Macrocallista maculata Linnaeus 1758 venus clam
present
 Cardiida - Chamidae
Pseudochama chipolana jewel box
common
 Cardiida - Mactridae
"Spisula (Hemimactra) densa" = Hemimactra
"Spisula (Hemimactra) densa" = Hemimactra clam
present; ? in occurrence table
Gastropoda
 Sorbeoconcha - Naticidae
"Polinices judsoni" = Natica judsoni, "Polinices (Neverita) chipolanus" = Neverita chipolanus
"Polinices judsoni" = Natica judsoni Maury 1910 moon snail
rare
"Polinices (Neverita) chipolanus" = Neverita chipolanus Dall 1892 moon snail
rare
 Neogastropoda - Melongenidae
Busycon atraktoides n. sp. Gardner 1947 whelk
rare
Busycon radix Gardner 1947 whelk
? in occurrence table
 Neogastropoda - Cancellariidae
 Neogastropoda - Olividae
"Oliva liodes" = Oliva (Omogymna) liodes
"Oliva liodes" = Oliva (Omogymna) liodes Dall 1903 olive snail
rare