USGS Loc. 7361, 7362, 7363 - Brooksville [Suwannee Lmst] (Oligocene of the United States)

Also known as USGS Loc. 11113, 12317, 12318, 12319, 12320, 12322, 12755, 12756, 12757, 12758, 13853

Where: Hernando County, Florida (28.6° N, 82.4° W: paleocoordinates 28.6° N, 76.1° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Suwannee Limestone Formation (Vicksburg Group), Rupelian (33.9 - 28.1 Ma)

• Cunningham et al. (1998) identified Suwannee LS as Early Oligocene age. Cooke and Mansfield (1936) assigned Suwannee to Vicksburg group. Suwannee assigned to Rupelian Stage (early Oligocene) by Brewster-Wingard et al. (1987) and COSUNA (1988).

• formation-level stratigraphic resolution

Environment/lithology: lithified, white limestone

• Author notes that the fauna indicate warm water conditions rather than cold.
• The formation consists almost entirely of limestone. The unweathered rock is a granular to dense, compact, usually cream-colored rather pure limestone. The lower par is at many places more granular than the upper. Mossom (1925) provided the following lithologic description from the Suwannee LS quarry of the Florida Hard Rock Products Co., Brooksville, FL: Silica - 6.54%; Iron and aluminum - 1.44%; Calcium carbonate - 91.09%; Magnesium carbonate - trace; Undetermined - 0.93%

Primary reference: W. C. Mansfield. 1937. Molluscs of the Tampa and Suwannee Limestones. Geological Bulletin, State of Florida Department of Conservation 15:1-334 [A. Miller/C. Ferguson/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 60665: authorized by Arnold Miller, entered by Chad Ferguson on 19.05.2006, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

• Occurrence based data only
Show authors, comments, and common names
Echinoidea
 Stomopneustoida - Stomechinidae
Phymotaxis mansfieldi n. sp.1
Phymotaxis mansfieldi n. sp.1 Cooke 1941 sea urchin
 Spatangoida - Schizasteridae
Agassizia (Anisaster) mossomi2
Agassizia (Anisaster) mossomi2 Cooke 1942 heart urchin
 Cassiduloida - Cassidulidae
Rhyncholampas gouldii
Rhyncholampas gouldii Bouvé 1846 sea urchin
 Temnopleuroida -
Gagaria mossomi2
Gagaria mossomi2 Cooke 1941 sea urchin
Gastropoda
 Cerithioidea - Potamididae
Potamides ? cornutus
 Cerithioidea - Cerithiidae
"Cerithium brooksvillensis" = Cestumcerithium brooksvillensis, "Cerithium pascoensis" = Cestumcerithium pascoensis, "Cerithium ? vaginatum" = Cestumcerithium vaginatum, Cerithium hernandoensis
"Cerithium brooksvillensis" = Cestumcerithium brooksvillensis Mansfield 1937 cerith snail
"Cerithium pascoensis" = Cestumcerithium pascoensis Mansfield 1937 cerith snail
"Cerithium ? vaginatum" = Cestumcerithium vaginatum Mansfield 1937 cerith snail
 Cerithioidea - Turritellidae
Turritella bowenae
Turritella bowenae Mansfield 1937 turret shell
 Sorbeoconcha - Naticidae
Sinum aff. imperforatum, "Amauropsis" aff. burnsii
Sinum aff. imperforatum Dall 1915 moon snail
"Amauropsis" aff. burnsii moon snail
subspecies - meridionalis
 Sorbeoconcha - Thersiteidae
Orthaulax hernandoensis3
Orthaulax hernandoensis3 Mansfield 1937 snail
subspecies - hernandoensis
 Sorbeoconcha - Strombidae
Terebellum hernandoensis
 Sorbeoconcha - Cassidae
Cassis sp.
Cassis sp. Scopoli 1777 snail
 Neogastropoda - Volutidae
Lyria musicina
 Neogastropoda - Turbinellidae
"Vasum ? engonatum" = Vasum haitensis
"Vasum ? engonatum" = Vasum haitensis Sowerby 1850 snail
 Neogastropoda - Costellariidae
? Knefastia brooksvillensis
 Neogastropoda - Olividae
"Olivella brooksvillensis" = Omogymna brooksvillensis
"Olivella brooksvillensis" = Omogymna brooksvillensis Mansfield 1937 olive snail
 Neogastropoda - Conidae
Conus ? cookei
Conus ? cookei Dall 1916 cone shell
 Neogastropoda - Fasciolariidae
? Latirus sp.
? Latirus sp. Monfort 1810 snail
collected from the lower part of quarry at Brooksville
 Sorbeoconcha - Xenophoridae
Xenophora conchyliphora
 Architaenioglossa - Ampullinidae
Ampullina ? flintensis
 Opisthobranchia - Cylichnidae
Scaphander sp.
Scaphander sp. Monfort 1810 snail
collected from the lower part of quarry at Brooksville
 Trochoidea - Trochidae
Calliostoma ? silicatum
Bivalvia
 Carditida - Carditidae
"Venericardia serricosta" = Venericardia (Glyptoactis) serricosta
"Venericardia serricosta" = Venericardia (Glyptoactis) serricosta Heilprin 1887 clam
subspecies - brooksvillensis
 Thraciida - Thraciidae
Thracia vicksburgiana
Thracia vicksburgiana clam
subspecies - hernandoensis
 Cardiida - Veneridae
"Chione aff. bainbridgensis" = Chione (Chionopsis) bainbridgensis, ? Venus sp., Pitaria aff. imitabilis
"Chione aff. bainbridgensis" = Chione (Chionopsis) bainbridgensis Dall 1916 venus clam
? Venus sp. Linnaeus 1758 venus clam
 Cardiida - Cardiidae
Cardium aff. gadsdenense, Cardium brooksvillensis, Cardium hernandoensis
Cardium aff. gadsdenense Mansfield 1937 cockle
 Pholadida - Teredinidae
"? Teredo incrassata" = Kuphus incrassatus
"? Teredo incrassata" = Kuphus incrassatus Gabb 1873 clam
 Hiatellida - Hiatellidae
"Panope brooksvillensis" = Panopea
"Panope brooksvillensis" = Panopea clam
 Lucinida - Lucinidae
Divaricella sp., Phacoides hernandoensis, Phacoides wacissanus, Phacoides ? hillsboroensis
Divaricella sp. Martens 1880 clam
Phacoides hernandoensis Mansfield 1937 clam
Phacoides wacissanus Dall 1915 clam
Phacoides ? hillsboroensis Heilprin 1887 clam
 Mytilida - Mytilidae
Modiolus blandus, Modiolus ? grammatus
Modiolus blandus mussel
collected from the lower part of quarry at Brooksville
Modiolus ? grammatus Dall 1898 mussel
 Ostreida - Gryphaeidae
"Ostrea aff. antiguensis" = Pycnodonte (Crenostrea) antiguensis
"Ostrea aff. antiguensis" = Pycnodonte (Crenostrea) antiguensis Brown 1913 oyster
 Pectinida - Pectinoidae
Chlamys brooksvillensis, Chlamys ? liveoakensis
 Arcida - Arcidae
Barbatia ? marylandica
Barbatia ? marylandica Conrad 1840 clam
 Arcida - Glycymerididae
Glycymeris ? tuckerae
1Cooke 1941; 2Cooke 1959; 3Vokes and Vokes 1968