Where: Polk County, Florida (27.8° N, 82.0° W: paleocoordinates 28.0° N, 80.1° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Bone Valley Member (Peace River Formation), Tortonian (11.6 - 7.2 Ma)
• Bradley Fauna; said to be Hemphillian, but Tertiary Mammals II says this is Barstovian, Ba2; lower beds
•
•Missimer 1999: The Peace River Formation was deposited from about 11 to 4.3 Ma. It is separated from the underlying, middle Miocene Arcadia Formation by an unconformity with a hiatus of 2 to 4 m.y. The unconformity separating the shallow marine sequence (late Miocene) from the overlying deltaic sequence (early Pliocene) has a hiatal gap of 2 to 6 m.y. depending on geographic location.
• group of beds-level stratigraphic resolution
Environment/lithology: lagoonal; lithified, pebbly, phosphatic, argillaceous, sandy sandstone
Size class: macrofossils
Preservation: original phosphate
Reposited in the 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 45469: authorized by Mark Uhen, entered by Nick Pyenson on 25.10.2004, edited by Mark Uhen
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Megalodelphis magnidens n. gen. n. sp." = Thecachampsa sericodon3
"Megalodelphis magnidens n. gen. n. sp." = Thecachampsa sericodon3 Cope 1867 crocodilian MCZ 17883 - holotype (partial mandibular ramus with four teeth); referred specimen: MCZ 17880 (rostral fragment)
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Mammalia | |
Scaldicetus sp. Du Bus 1867 toothed whale | |
Goniodelphis hudsoni n. gen. n. sp.1
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"Balaenoptera floridana n. sp." = Balaena cortesii3
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