Loc. 25 - Permenter's Farm [Jackson Bluff Fm] (Pliocene of the United States)

Where: Walton County, Florida (30.6° N, 86.2° W: paleocoordinates 30.7° N, 85.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• LITHOSTRATIGRAPHY: From the Choctawhatchee, which overlies the Shoal River Fm (Middle Miocene) as originally entered; placed here in Jackson Bluff Fm. AGE: Late Miocene, on the basis of macrofossil and microfossils biostratigraphy as originally entered; placed here in Late Pliocene. STRATIGRAPHIC RELATIONS: From either the Arca or Ecphora (more likely) zones of the Choctawhatchee Fm (upper part); Smith designated these the Permenter's Farm beds, which comprise 25 ft of fossiliferous gray marl.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; unlithified, gray marl

• ENVIRONMENT: Not discussed in text, but appears to be shallow marine siliciclastic.
• LITHOLOGY: Fossiliferous gray marl. LITHIIFCATION: Unlithified, assumed on the basis of age and facies description, and inspection of other collections from Chochtawhatchee Fm outcrops.

Size class: macrofossils

Preservation: original aragonite

Collected by Smith

Collection methods: surface (in situ),

• COLLECTOR: R.H. Smith, c. 1940. REPOSITORY: Probably Florida Geological Survey.

Primary reference: R. H. Smith. 1941. Micropaleontology and stratigraphy of a deep well at Niceville, Okaloosa County, Florida. Bulletin of the American Association of Petroleum Geologists 25(2):263-286 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 94809: authorized by Austin Hendy, entered by Austin Hendy on 24.03.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Not an authoritative publication with somewhat antiquated nomenclature, though with species-resolution identifications.
Bivalvia
 Arcida - Arcidae
"Arca (Anadara) idonea" = Dallarca idonea, "Arca (Anadara) aresta" = Anadara
"Arca (Anadara) idonea" = Dallarca idonea Conrad 1832 clam
SUBSPECIES: A. (A.) idonea alumensis
"Arca (Anadara) aresta" = Anadara ark
 Pectinida - Pectinoidae
"Chlamys (Plagioctenium) choctawhatcheensis" = Argopecten
"Chlamys (Plagioctenium) choctawhatcheensis" = Argopecten calico scallop
 Ostreida - Ostreidae
 Carditida - Astartidae
 Carditida - Crassatellidae
"Crassatellites (Scambula) alaquensis" = Scambula
"Crassatellites (Scambula) alaquensis" = Scambula clam
 Pholadida - Corbulidae
"Corbula (Caryocorbula) barrattiana" = Caryocorbula caribaea, Corbula (Caryocorbula) nucleata, "Corbula (Corbula) waltonensis" = Varicorbula disparilis
"Corbula (Caryocorbula) barrattiana" = Caryocorbula caribaea d'Orbigny 1845 clam
SUBSPECIES: C. (C.) barrattiana leonensis
"Corbula (Corbula) waltonensis" = Varicorbula disparilis d'Orbigny 1853 clam
SUBSPECIES: C. (C.) waltonensis rubisiana
 Cardiida - Chamidae
"Echinochama arcinella" = Arcinella arcinella
"Echinochama arcinella" = Arcinella arcinella Linnaeus 1767 jewel box
 Cardiida - Ungulinidae
 Cardiida - Veneridae
"Venus campechiensis" = Mercenaria campechiensis
"Venus campechiensis" = Mercenaria campechiensis Gmelin 1791 quahog
SUBSPECIES: V. campechiensis alaquaensis
 Hiatellida - Hiatellidae
"Panope goldfussi" = Panopea
"Panope goldfussi" = Panopea clam
 Lucinida - Lucinidae
"Phacoides (Parvilucina) crenulatus" = Parvilucina crenulata, "Phacoides (Parvilucina) multilineatus" = Parvilucina multistriata, "Phacoides (Lucinisca) cribrarius" = Lucinisca cribrarius, "Phacoides (Lucinoma) contractus" = Lucinoma
"Phacoides (Parvilucina) crenulatus" = Parvilucina crenulata Conrad 1840 clam
"Phacoides (Parvilucina) multilineatus" = Parvilucina multistriata Conrad 1841 clam
"Phacoides (Lucinisca) cribrarius" = Lucinisca cribrarius Say 1824 clam
"Phacoides (Lucinoma) contractus" = Lucinoma clam
 Protobranchia - Nuculanidae
"Leda polychoa" = Nuculana
"Leda polychoa" = Nuculana pointed nut clam
SUBSPECIES: L. polychoa defuniak
Gastropoda
 Calyptraeoidea - Calyptraeidae
"Crucibulum auriculum" = Crucibulum (Crucibulum) auricula
"Crucibulum auriculum" = Crucibulum (Crucibulum) auricula Gmelin 1791 slipper shell
 Sorbeoconcha - Turritellidae
Turritella cookei turret shell
SUBSPECIES: T. cookei permenteri
Turritella subannulata turret shell
SUBSPECIES: T. subannulata jacksonensis
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium attenuatum Say 1824 tusk shell
 Gadilida - Gadilidae