Also known as Kingsford Mine; Nichols Mine
Where: Polk County, Florida (27.9° N, 81.8° W: paleocoordinates 28.1° N, 79.9° W)
• coordinate based on political unit
When: Bone Valley Member (Peace River Formation), Tortonian (11.6 - 7.2 Ma)
• this fauna is NOT Hemphillian and contains Barstovian and possibly Clarendonian elements; it is considered Barstovian by Baskin 1982 and Morgan and Pratt 1988; it does NOT include late Hemphillian material from the Kingsford Mine (Younger) list, which was separated out; upper beds
•Previously Barstovian, but Missimer (1999) suggested that the Peace River Formation in Florida was likely deposited between 11-4.3Ma. The lower sequence is Tortonian, deposited between 11-8.5Ma, and the upper sequence is Zanclean and deposited between 5.2-4.3Ma
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Primary reference: G. S. Morgan and A. E. Pratt. 1988. Southeastern Geological Society Guidebook 29 [J. Alroy/J. Alroy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 18509: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
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? Procyoninae indet.2 Gray 1825 procyonid carnivore in situ, associated with "Barstovian" fauna at Kingsford
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Vulpes stenognathus6 Savage 1941 fox "Nichol’s Mine, upper Bone Valley Forma- tion (late Hemphillian), Polk County, Florida"
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Megahippus sp.4, Merychippus cf. californicus4, Pseudhipparion sp.4, Hippotherium sp.1, Nannippus sp.4, Protohippus perditus3, Calippus sp.4, Calippus proplacidus3, Pliohippus mirabilis4
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