Amalgamated Phosphate Company Mine (Miocene of the United States)

Where: Polk County, Florida (27.8° N, 82.0° W: paleocoordinates 28.0° N, 79.3° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Bone Valley Member (Peace River Formation), Serravallian (13.8 - 11.6 Ma)

• Bradley fauna from Bone Valley Formation; lower beds

• formation-level stratigraphic resolution

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

• Bone Valley Formation environment consists of both lagoons and bays along the coast.
• Clastic rcok unit consisting primarily of pebble- to sand-sized phophate in a matrix of clay and quartz sand.

Size class: macrofossils

Preservation: original phosphate

Collected by Anton Schneider; reposited in the FLMNH, MCZ

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 45452: authorized by Mark Uhen, entered by Nick Pyenson on 24.10.2004, edited by Evangelos Vlachos and John Alroy

Creative Commons license: CC BY (attribution)

Taxonomic list

 Testudines - Pantestudinidae
Testudo hayi n. sp.2
Testudo hayi n. sp.2 Sellards 1916 turtle
USNM 8815 (holotype), carapacial and plastral fragments (Auffenberg 1963, fig. 20)
 Crocodylia -
"Tomistoma americana n. sp." = Thecachampsa sericodon1
"Tomistoma americana n. sp." = Thecachampsa sericodon1 Cope 1867 crocodilian
Florida State Geological Survey 3657 - type (anterior portion of skull); referred specimen - 2372 (fragment of lower jaw); "Miocene" specimens collected before 1921 by the Amalgamated Phosphate Company and reposited with the AMNH, FGS, USNM, and MCZ
 Odontoceti - Platanistidae
Pomatodelphis inaequalis Allen 1921 toothed whale