Peace River Fm (unspecified localities) of Petuch & Roberts: Tortonian - Zanclean, Florida

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Mytilida - Mytilidae
Perna incurvus
Bivalvia - Pholadida - Pholadidae
Cyrtopleura arcuata
Bivalvia - Cardiida - Veneridae
Clementia inoceriformis (Wagner 1839)
recombined as Clementia (Clementia) inoceriformis
Gastropoda - Turritellidae
Torcula subvariabilis
Gastropoda - Cypraeidae
Calusacypraea sp. Petuch 1996
synonym of Siphocypraea
"Akleistostoma" sp. Gardner 1948
Gastropoda - Neogastropoda - Olividae
Oliva (Strephona) sp. Mörch 1852
Gastropoda - Neogastropoda - Conidae
Gradiconus deluvianus
synonym of Conus
see common names

Geography
Country:United States State/province:Florida
Coordinates: 27.2° North, 81.8° West (view map)
Paleocoordinates:27.4° North, 80.2° West
Basis of coordinate:based on nearby landmark
Geographic resolution:basin
Time
Period:Neogene
10 m.y. bin:Cenozoic 6
Key time interval:Tortonian - Zanclean
Age range of interval:11.63000 - 3.60000 m.y. ago
Stratigraphy
Geological group:Hawthorn Formation:Peace River
Stratigraphic resolution:formation
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Peace River Fm, Hawthorn Grp, which is overlain by the Bayshore Fm. Correlative with the St Marys and Shoal River Fms. THICKNESS: Varies between 100 and 200 m across areal extent. AGE: late Midde-early Late Miocene. Based on macrofossil biostratigraphy the unit is throught to represent the Serravallian-early Tortonian; here assigned to Serravalian. STRATIGRAPHIC POSITION: Checklist representative of entire member.
Previously Barstovian, but Missimer (1999) suggested that the Peace River Formation in Florida was likely deposited between 11-4.3Ma. The lower sequence is Tortonian, deposited between 11-8.5Ma, and the upper sequence is Zanclean and deposited between 5.2-4.3Ma
Lithology and environment
Primary lithology:very fine,medium,dolomitic,phosphatic lithified argillaceous sandstone
Includes fossils?Y
Lithology description: SPECIFIC LITHOLOGY: Interbedded quartz sands, clays, and carbonates. Quartz sands are dominant, and are calcareous to dolomitic, phosphatic, very fine to medium grained, and poorly consolidated LITHIFICATION: Lithified, based on figured specimens.
Environment:lagoonal/restricted shallow subtidal
Geology comments: ENVIRONMENT: carbonate lagoonal/restricted shallow subtidal environment; shallow muddy sand lagoon and turtle grass beds.
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Collection methods and comments
Collection methods:field collection,survey of museum collection
Reason for describing collection:biostratigraphic analysis
Collection method comments: COLLECTOR: Unknown, presumably the authors and others. REPOSITORY: No repository stated.
Taxonomic list comments:COVERAGE: Includes only the more abundant and indicative species of gastropoda and bivalvia. NOMENCLATURE: Modern nomenclature, with subgenus and species-resolution assignments.
Metadata
Database number:79965
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:G. Varnham Research group:GCP,marine invertebrate
Created:2008-03-29 12:59:20 Last modified:2022-04-28 04:55:14
Access level:the public Released:2008-03-29 12:59:20
Creative Commons license:CC BY
Reference information

Primary reference:

26813. E. J. Petuch and C. E. Roberts. 2007. The geology of the Everglades and adjacent areas 1-212 [A. Hendy/A. Hendy]