Ayers Landing Mbr, Caloosahatchee Fm (Pleistocene of the United States)

Where: Florida (26.5° N, 81.2° W: paleocoordinates 26.6° N, 80.8° W)

• coordinate based on nearby landmark

• basin-level geographic resolution

When: Ayers Landing Member (Caloosahatchee Formation), Early/Lower Pleistocene (2.6 - 0.8 Ma)

• STRATIGRAPHIC RELATIONS: From the Ayers Landing Mbr of the Caloosahatchee Fm, Okeechobee Grp, which is overlain by the Nashua Fm, and overlies the Bee Branch Mbr of the Caloosahatchee Fm. Correlative with the James City Fm (Virginia and North Carolina), Waccamaw Fm (North and South Carolina), and the Rucks Pit Mbr of the Nashua Fm (Florida). THICKNESS: Varies between 1 and 3 m across areal extent. AGE: Early Pleistocene. Based on macrofossil biostratigraphy the unit is assigned to the late Calabrian. Here assigned to the Early Pleistocene. STRATIGRAPHIC POSITION: Checklist representative of entire member.

• member-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; unlithified, shelly/skeletal, gray, white, calcareous sandstone and unlithified, concretionary, brown, gray sandstone

• ENVIRONMENT: Lagoonal and subtidal carbonate; shallow sand-bottom lagoon, turtle grass beds.
• SPECIFIC LITHOLOGY: Sandy, cream-colored calcarenite (weathering to gray) with fossil mollusca, and tan-colored, slightly concretionary, unconsolidated calcarenite with sparse fossils. LITHIFICATION: Unlithified, based on figured specimens and facies description.

Size class: macrofossils

Collection methods: COLLECTOR: Unknown, presumably the authors and others. REPOSITORY: No repository stated.

Primary reference: E. J. Petuch and C. E. Roberts. 2007. The geology of the Everglades and adjacent areas 1-212 [A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 79782: authorized by Austin Hendy, entered by Austin Hendy on 23.03.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Includes only the more abundant and indicative species of gastropoda and bivalvia. NOMENCLATURE: Modern nomenclature, with subgenus and species-resolution assignments.
Gastropoda
 Cerithioidea - Batillariidae
 Sorbeoconcha - Cypraeidae
Siphocypraea griffini Petuch 1991 cowry
 Neogastropoda - Turbinellidae
 Neogastropoda - Olividae
 Neogastropoda - Cancellariidae
 Neogastropoda - Fasciolariidae
 Neogastropoda - Melongenidae
"Pyruella eismonti" = Busycon, "Pyruella ovoidea" = Busycon, "Fulguropsis griffini" = Busycon, "Echinofulgur griffini" = Busycon, Melongena chickee
"Pyruella eismonti" = Busycon whelk
"Pyruella ovoidea" = Busycon whelk
"Fulguropsis griffini" = Busycon whelk
"Echinofulgur griffini" = Busycon whelk
 Neogastropoda - Volutidae
 Neogastropoda - Muricidae
 Neogastropoda - Conidae
"Contraconus heilprini" = Conus (Contraconus) adversarius, "Contraconus mitchellorum" = Conus (Contraconus) adversarius, "Contraconus scotti" = Conus (Contraconus) adversarius, "Ximeniconus robertsi" = Conus (Ximeniconus)
"Contraconus heilprini" = Conus (Contraconus) adversarius Conrad 1840 cone shell
"Contraconus mitchellorum" = Conus (Contraconus) adversarius Conrad 1840 cone shell
"Contraconus scotti" = Conus (Contraconus) adversarius Conrad 1840 cone shell
"Ximeniconus robertsi" = Conus (Ximeniconus) cone shell
 Sorbeoconcha - Strombidae
"Macrostrombus jonesorum" = Strombus (Macrostrombus)
"Macrostrombus jonesorum" = Strombus (Macrostrombus) conch