Nichols Mine Stream Matrix Horizon (Miocene to of the United States)

Also known as Mobil Mine

Where: Polk County, Florida (27.9° N, 81.8° W: paleocoordinates 28.1° N, 80.1° W)

• coordinate based on political unit

When: Bone Valley Member (Peace River Formation), Tortonian to Tortonian (11.6 - 3.6 Ma)

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: R. C. Hulbert, Jr. 1988. Cormohipparion and Hipparion (Mammalia, Perissodactyla, Equidae) from the Late Neogene of Florida. Bulletin of the Florida State Museum, Biological Sciences 33(5):229-338 [J. Alroy/J. Alroy/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 18568: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Nick Pyenson

Creative Commons license: CC BY (attribution)

Taxonomic list

• Mobil Mine presumably really is the same as Nichols Mine as it does not appear on the map of Morgan 1994equids onlysee Bradley for earlier, late Barstovian horizonP. supremus is present in the Grey Zone: Hulbert 1988aC. emsliei is presened in an unidentified horizon: Hulbert 1988bmay include type of Rhynchotherium simpsoni Olsen 1957a from "Bone Valley formation, pit of the Phosphate Mining Company, Nichols"; and Epicyon haydeni Wang et al. 1999 from "Nichols Mine"
unclassified
  -
Mammalia
 Lagomorpha - Leporidae
Hypolagus cf. tedfordi3 White 1988 rabbit
"Mobil Mine, Lower Bone Valley, Hillsborough County"
 Perissodactyla - Equidae
Nannippus westoni Simpson 1930 hipparionine horse
Pseudhipparion skinneri Webb and Hulbert 1986 hipparionine horse
"Hippotherium ingenuum" = Cormohipparion ingenuum1 Leidy 1885 hipparionine horse
"Hippotherium plicatile" = Cormohipparion plicatile1 Leidy 1887 hipparionine horse
Neohipparion trampasense Edwards 1982 hipparionine horse
Calippus elachistus Hulbert 1988 horse
Calippus cerasinus Hulbert 1988 horse