The Gadsden County paleontological sites are assemblages of Early Miocene invertebrates and vertebrates occurring in Gadsden County, Florida, United States.
Age Era: Neogene Period: Early Miocene Faunal stage: Hemingfordian ~20.6—16.3 Mya, calculates to a period of approximately Geologic formation: Torreya Formation
Sites
Gadsden County paleontological sites are represented by the following: La Camelia Site. Time period: 17.7 Mya. (AEO) Midway Site. Time period: ~18.9—18.8 Mya. Milwhite Gunn Farm Site. Time period: ~17.0 Mya. (AEO) Quincy Site. Time period: ~17.0 Mya. (AEO) Coordinates:
Genus and species identified La Camelia site = LCS. Midway site. = MIS. Milwhite Gunn Farfm Site. Marks River site = MGFD. Quincy site = QUI.
Reptiles and amphibians Batrachosauroides B. dissimulans (amphibian) MGFD Colubrinae (snake) MGFD Natricinae (snake) MGFD Scincidae (skink) MGFD Cnemidophorus (racerunner lizard).MGFD. Heloderma (Gila monster type poisonous lizard) LCS Leiocephalus (lizard) MGFD
Mammals Carnivores Amphicyon pontoni (bear-dog) MIS Borophaginae (proto-dog) MIS Procyon (raccoon) MIS
Herbivores Acritohippus isonesus (horse) LCS Anchitherium clarencei MIS Aphelops (rhinoceros) LCS, MIS, MGFD Archaeohippus blackbergi Blastomeryx (musk deer) MIS Bouromeryx americanus (deer-like) LCS Harrymys magnus (kangaroo rat) MIS Lantanotherium (gymnure) MGFD Copemys (hamster-like rodents) MGFD Metaxytherium crataegense (sea cow) LCS, MGFD Merychippus gunteri (horse) LCS, MGFD, QUI Merychippus primus (horse) LCS, MGFD Mylagaulus (horned rodent) MIS, MGFD Nanosiren (sea cow) MIS Merycoidodontidae (oreodont) MIS Perognathus minutus (mouse) MGFD Proheteromys floridanus (kangaroo rat) MIS, MGFD Prosynthetoceras texanus (deer-like) MIS Prosthennops xiphodonticus (deer-like). LCS Rakomeryx (deer-like) LCS
References Bryant, J. D., Journal of Vertebrate Paleontology 11(4). 1991 Simpson, G. G., 1932. Bulletin of the Florida State Geological Survey 10. New Early Barstovian (Middle Miocene) Vertebrates from the Upper Torreya Formation, Eastern Florida Panhandle, J. Daniel Bryant, Journal of Vertebrate Paleontology, Vol. 11, No. 4 (Dec. 31, 1991), pp. 472–489. Paleobiology Database : Gunn Farm Collection, John Alroy. Paleobiology Datatabase: Midway Collection, Alroy. Olson, Stanley J., Florida Geological Survey, Fossil Mammals of Florida, 1959 .