- Source: Thomas Farm Site
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. 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
Aelurodon (A. johnhenryi)
Phoberocyon (johnhenryi)
Mustelidae
Mephitaxus (M. ancipidens)
Miomustela
Zodiolestes (Z. freundi)
Oligobunis (O. floridanus)
Canidae
Osbornodon iamonensis
Euoplocyon (E. spissidens)
Metatomarctus (M. canavus)
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
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