Four Corners Mine, Pliocene (Neogene of the United States)

Where: Hillsborough County, Florida (27.7° N, 82.1° W: paleocoordinates 27.8° N, 80.4° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Bone Valley Formation, Late/Upper Hemphillian (10.3 - 4.9 Ma)

• Palmetto Fauna

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, pebbly, phosphatic, argillaceous, sandy sandstone

• Clastic rock unit consisting primarily of pebble- to sand-sized phosphates in a matrix of clay and quartz sand.

Size class: macrofossils

Preservation: original phosphate

Reposited in the FLMNH

Collection methods: salvage,

Primary reference: G. S. Morgan. 1994. Miocene and Pliocene marine mammal faunas from the Bone Valley Formation of central Florida. Contributions in Marine Mammal Paleontology Honoring Frank C. Whitmore Jr., Proceedings of the San Diego Society of Natural History 29:239-268 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 45478: authorized by Mark Uhen, entered by Nick Pyenson on 25.10.2004, edited by Mark Uhen and Catalina Pimiento

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Cheloniidae
Caretta sp.1 Rafinesque 1814 loggerhead
 Testudines -
"Chelonia sp." = Testudines1
"Chelonia sp." = Testudines1 Batsch 1788 turtle
Mammalia
 Sirenia - Dugongidae
Nanosiren garciae n. gen. n. sp.2
Nanosiren garciae n. gen. n. sp.2 Domning and Aguilera 2008 dugong
 Carnivora - Phocidae
Callophoca obscura Van Beneden 1876 seal
 Cetacea - Kogiidae
Kogiidae indet.4 Miller 1923 pygmy sperm whale
Chondrichthyes
 Lamniformes - Otodontidae
"Carcharocles megalodon" = Otodus megalodon3
"Carcharocles megalodon" = Otodus megalodon3 Agassiz 1835 megalodon
Locality information based on reference's supporting information aided with FLMNH online database. See Pimiento and Balk