Jackson Bluff Formation (unspecified localities) (Pliocene of the United States)

Where: Florida (30.4° N, 84.6° W: paleocoordinates 30.5° N, 84.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

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

• Data a composite of Jackson Bluff Formation localities in Florida. From Huddlestun (1984): "The Alum Bluff Group includes the Chipola Formation, Oak Grove Sand, Shoal River Formation, Choctawhatchee Formation and the Jackson Bluff Formation" - Huddlestun, P. F., 1984, Unpublished Dissertation, Florida State University Department of Geology, Tallahassee, Florida.

• formation-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, shelly/skeletal, brown, gray, green, argillaceous, sandy carbonate

• Geology not specified for Jackson Bluff Formation
• Lithologic data not specified for Jackson Bluff Formation. From Schmidt (1984): "In the outcrop area, the Jackson Bluff Formation is described as a sandy, clayey shell bed. It is composed of tan to orange-brown to gray green, poorly consolidated, fossiliferous, sandy clays to clayey sands." - Schmidt, W., 1984, Florida Geological Survey Bulletin 58.

Size class: macrofossils

Collection methods: Compilation of known taxa from Jackson Bluff Formation, Florida State. Comprises range on unspecified collecting techniques.

Primary reference: C. W. Oyen and R. W. Portell. 2001. Diversity patterns and biostratigraphy of Cenozoic echinodems from Florida. Palaeogeography, Palaeoclimatology, Palaeoecology 166:193-218 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 35029: authorized by Austin Hendy, entered by Austin Hendy on 25.10.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Complete checklist of echinoid taxa for Jackson Bluff Formation of Florida. Also other taxa present in formation, not discussed or listed. From Schmidt (1984): "Fossils present include abundant mollusks, corals, foraminifers and occasional vertebrate remains." - Schmidt, W., 1984, Florida Geological Survey Bulletin 58
 Pectinida - Pectinoidae
Spathochlamys vaginula3 Dall 1898 scallop
 Neogastropoda - Fasciolariidae
Heilprinia dalli1 Mansfield 1930 snail
 Neogastropoda - Muricidae
 Spatangoida - Loveniidae
Echinocardium orthonotum Conrad 1843 heart urchin
 Clypeasteroida - Mellitidae
Mellita aclinensis Kier 1963 sand dollar