Gadsden County, Florida paleontological sites
The Gadsden County paleontological sites are assemblages of Early Miocene invertebrates and vertebrates occurring in Gadsden County, Florida, United States.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/bd/Gadsden_County_Florida_exploding_600px.png/200px-Gadsden_County_Florida_exploding_600px.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/b/b3/Interglacial_Florida.png/200px-Interglacial_Florida.png)
Age
editEra: Neogene
Period: Early Miocene
Faunal stage: Hemingfordian ~20.6—16.3 Mya, calculates to a period of approximately 4.3 million years
Geologic formation: Torreya Formation
Sites
editGadsden 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: 30°30′N 84°30′W / 30.5°N 84.5°W
Genus and species identified
editLa Camelia site = LCS. Midway site. = MIS. Milwhite Gunn Farfm Site. Marks River site = MGFD. Quincy site = QUI.
Reptiles and amphibians
edit- 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
editCarnivores
edit- Amphicyon pontoni (bear-dog) MIS
- Borophaginae (proto-dog) MIS
- Procyon (raccoon) MIS
Herbivores
edit- 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
edit- 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 [1].