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Alachua Formation

The Alachua Formation is a Miocene geologic formation in Florida. The claystones, sandstones and phosphorites of the formation preserve many fossils of mammals, birds, reptiles and fish, among others megalodon.

Fossil content
The formation has provided the following fossils. Mammals ;Rodents • Harrymys magnusNototamias hulbertiPetauristodon pattersoniProheteromys floridanuscf. Miospermophilus sp.Mylagaulus kinseyicf. Texomys sp.Lagomorpha indet.Mylagaulidae indet. ;Carnivora • Amphicyon longiramusBorophagus orcB. pugnatorCynelos caroniavorusEnhydritherium terraenovaeEpicyon haydeniE. saevusEucyon davisiEuoplocyon spissidensLeptarctus ancipidensMetatomarctus canavusOligobunis floridanusOsbornodon iamonensisPhoberocyon johnhenryiZodiolestes freundiBorophagus sp.Phlaocyon sp.Sthenictis sp.Felidae indet.Mustelinae indet. ;Ground sloths • Pliometanastes protistusThinobadistes segnis ;Gomphotheres • Amebelodon (Konobelodon) brittiAmebelodon sp. ;Artiodactyls • Aepycamelus majorDiabolocornis simonsiFloridachoerus olseniFloridameryx floridanusFloridatragulus dolichanthereusHemiauchenia minimaMachaeromeryx gilchristensisNothokemas floridanusParablastomeryx floridanusPediomeryx hemphillensisProsynthetoceras texanusSynthetoceras australisS. cf. tricornatusYumaceras hamiltoniAepycamelus sp.Hemiauchenia sp.Merycoidodon sp.Antilocapridae indet.Camelidae indet.Ruminantia indet.Tayassuidae indet.Tayassuinae indet. ;Soricomorpha • Karstala silvaMiomyotis floridanusPrimonatalus prattaeSuaptenos whiteiLimnoecus sp.Chiroptera indet. ;Perissodactyls • Anchitherium clarenceiAphelops malacorhinusA. mutilusArchaeohippus blackbergiCalippus elachistusCalippus hondurensisCalippus maccartyiCormohipparion emslieiC. ingenuumC. plicatileFloridaceras whiteiMenoceras barbouriNannippus aztecusN. morganiN. westoniNeohipparion trampasenseParahippus leonensisProtohippus gidleyiPseudhipparion skinneriTapirus webbiTeleoceras proterumHipparion cf. tehonensecf. Astrohippus sp.Dinohippus sp. ;Sirenians • Metaxytherium cf. floridanum ;Lipotyphla • Talpidae indet. ;Theriiformes • Vespertilionidae indet. Birds Anhinga grandisA. subvolansBoreortalis laessleiEreunetes rayiJacana farrandiNycticorax fidensPhalacrocorax wetmoreiPromilio brodkorbiP. epileusP. floridanusRhegminornis calobatesThomasococcyx philohippusAnatidae indet.Cuculidae indet. Reptiles ;Turtles • Floridemys nanaHesperotestudo turgidaMacrochelys auffenbergiPseudemys caelataP. carriP. williamsiTestudo tedwhiteiApalone sp.Deirochelys sp.Pseudemys sp.Trachemys sp. ;Crocodiles • Alligator mississippiensisA. olseniThecachampsa sericodonAlligator sp. ;Snakes • Anilioides minuatusBoa constrictorCalamagras floridanusOgmophis pauperrimusParaoxybelis floridanusPseudocemophora antiquaPterygoboa sp. ;Lizards • Peltosaurus floridanusGekkonidae indet.Scolecophidia indet. Amphibians ;Anurans • Bufo praeviusHyla goiniProacris mintoniScaphiopus (Scaphiopus) holbrookiMicrohyla sp.Rana sp. ;Salamanders • Siren hesterna Fish ;Sharks • Carcharhinus brevipinnaCarcharhinus limbatusCarcharhinus leucasCarcharhinus plumbeusCarcharias taurusCosmopolitodus hastalisGaleocerdo aduncusNegaprion brevirostrisOtodus megalodonPhysogaleus contortusRhizoprionodon terraenovaeCarcharhinus sp.Negaprion sp. ;Rays • Pristis sp. ;Others • Hemipristis serraLepisosteus sp. == See also ==
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