The Thomas Farm site is an Early Miocene, Hemingfordian assemblage of vertebrate fossils located in Gilchrist County, northern Florida.[1]
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.[2] 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.[3][4]
Specimens
editReptilia
edit- 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
editPhalacrocoracidae
edit- Phalacrocorax (P. subvolans)
Columbidae
editMammals
editRhinocerotidae
edit- Diceratherium (D. barbouri)
- Floridaceras (F. whitei)
Equidae
edit- Parahippus (P. leonensis)
- Anchitherium (A. clarencei)
Amphicyonidae
editUrsidae
edit- Aelurodon (A. johnhenryi)
- Phoberocyon (johnhenryi)
Mustelidae
edit- Mephitaxus (M. ancipidens)
- Miomustela
- Zodiolestes (Z. freundi)
- Oligobunis (O. floridanus)
Canidae
edit- Osbornodon iamonensis
- Euoplocyon (E. spissidens)
- Metatomarctus (M. canavus)
- Aelurocyon (A. spissidens)
- Phlaocyon sp.
Chiroptera
edit- Chiroptera sp.
- Primonatalus (P. prattae)
- Karstala (K. silva)
- Miomyotis (M. floridanus)
- Svaptenos (S. whitei)
Artiodactyla
edit- Floridachoerus (F. olseni)
- Machaeromeryx (M. gilchristensis)
- Parablastomeryx (P. floridanus)
- Merycoidodon sp.
- Syndyoceras (S. australis)
- Floridatragulus (F. dolichanthereus)
- Oxydactylus (O. floridanus)
- Nothokemas (N. floridanus)
Soricidae
edit- Limnoecus sp.
Rodentia
edit- Cricetidae
- Proheteromys (P. magnus)
- Proheteromys P. floridanus)
- Miospermophilus
- Nototamias (N. hulberti)
- Petauristodon (P. pattersoni)
- Mesogaulus
- Mylagaulidae
Amphibians
edit- Proacris (P. mintoni)
- Proacris mintoni
References
edit- ^ "Thomas Farm". Florida Museum. 2017-03-28. Retrieved 2021-09-06.
- ^ Florida Museum of Natural History: Thomas Farm site
- ^ Lloyd, Robin. "An Inside Look at an 18 Million-year-old Fossil Dig Site in Florida". Scientific American Blog Network. Retrieved 2021-09-06.
- ^ Martin, Robert A. (1969). Fossil mammals of the coleman ILA local fauna, Sumter County, Florida. [s.n.]