The Thomas Farm site is an Early Miocene, Hemingfordian assemblage of vertebrate fossils located in Gilchrist County, northern Florida.
The Thomas Farm site is one of the richest terrestrial deposits of Miocene vertebrates in the 18 Ma range found in eastern North America according to the Florida Museum of Natural History. The site was discovered in 1931 by Florida Geological Survey (FGS) staff member Clarence Simpson.Florida Museum of Natural History: Thomas Farm site Specimens include: amphibians, reptiles, birds, small rodents, bats, rhinoceroses, three species of three-toed horses, several artiodactyls (including camels, peccary, deer-like species and other extinct forms), as well as dogs, bears, and bear-dogs.
Specimens
Reptilia Pseudemys sp. Testudo (T. tedwhitei) Promilio (P. epileus) Promilio (P. brodkorbi) Proictinia (P. floridana) Alligator (A. olseni) Paraoxybelis (P. floridanus) Pseudocemophora (P. antiqua) Anilioides (A. minuatus) Pseudoepicrates (P. stanolseni) Ogmophis (O. pauperrimus Calamagras (C. floridanus)
Birds
Phalacrocoracidae
Phalacrocorax (P. subvolans)
Columbidae Arenicolumba prattae
Mammals
Rhinocerotidae Diceratherium (D. barbouri) Floridaceras (F. whitei)
Equidae Parahippus (P. leonensis) Anchitherium (A. clarencei)
Amphicyonidae Daphoenus (D. caroniavorus Amphicyon (A. longiramus) Cynelos (C. caroniavorus)
Ursidae Phoberocyon (johnhenryi)
Mustelidae Mephitaxus (M. ancipidens) Miomustela Zodiolestes (Z. freundi) Oligobunis (O. floridanus)
Canidae Osbornodon iamonensis Euoplocyon (E. spissidens) Metatomarctus (M. canavus) Aelurodon (A. johnhenryi) Aelurocyon (A. spissidens) Phlaocyon sp.
Chiroptera Chiroptera sp. Primonatalus (P. prattae) Karstala (K. silva) Miomyotis (M. floridanus) Svaptenos (S. whitei)
Artiodactyla Floridachoerus (F. olseni) Machaeromeryx (M. gilchristensis) Parablastomeryx (P. floridanus) Merycoidodon sp. Syndyoceras (S. australis) Floridatragulus (F. dolichanthereus) Oxydactylus (O. floridanus) Nothokemas (N. floridanus)
Soricidae Limnoecus sp.
Rodentia Cricetidae Proheteromys (P. magnus) Proheteromys P. floridanus) Miospermophilus Nototamias (N. hulberti) Petauristodon (P. pattersoni) Mesogaulus Mylagaulidae
Amphibians Proacris (P. mintoni) Proacris mintoni
References
Paleobiology Database: Thomas Farm collection