Vertebrate Fossils (partial list)

VERTEBRATE FAUNAS OF THE JOHN DAY BASIN

Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
Amphibia	Anura	Ranidae	Rana				X
Reptilia	Crocodilia	Alligatoridae	new genus	X
		Crocodylidae	Pristichampsus	X
	Chelonia (Testudines)	Chelydridae	unidentified chelydrid	X
		Testudinidae [turtles]	Clemmys			X	X
			Hadrianus	X
			Stylemys		X
	Squamata	Rhineuridae [limbless "lizards"]	Dyticonastis		X
			Rhineura		X
		Boidae [constrictors]	Ogmophis		X
Aves	Falconiformes	Falconidae	unid. falconid			X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
Mammalia	Edentata	Megalonychidae	Megalonyx				X
	Deltatheridia	Hyaenodontidae	Hemipsalodon	X
		Oxyaenidae	Patriofelis	X
	Marsupialia	Didelphidae [opposums]	Peratherium		X
	Insectivora	Micropternodontidae [insectivores]	Micropternodus		X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Carnivora	Nimravidae [nimravids]	Dinaelurus		X
			Dinictis		X
			Eusmilus		X
			Hoplophoneus		X
			Nimravus		X
			unid. nimravid	X
		Mustelidae [small carnivores]	Leptarctus			X
			Lutravus				X
			Martes			X	X
			Oligobunis		X
			Plesictis		X
		Procyonidae	unid. procyonid			X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Carnivora	Canidae [dogs]	Canis				X
			Cormocyon		X
			Hesperocyon		X
			Leptocyon		X
			Mesocyon		X
			Nothocyon		X
			Oregoncyon		X
			Osbornodon		X
			Osteoborus				X
			Paraenhydrocyon		X
			Philotrox		X
			Temnocyon			X
			Tomarctus			X
		Amphicyonidae [bear-dogs]	Amphicyon			X
			Cynodictis		X
			Daphaenodon		X
			Daphaenus		X
			Paradaphoenus		X
			Pericyon		X
			Pliocyon			X
			Pseudocynodictis?		X
			Temnocyon		X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Carnivora	Ursidae [bears]	Allocyon		X
			Enhydrocyon		X
			Indarctos			X
			Parictis		X
			Simocyon			X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Perissodactyla	Amynodontidae	Procadurcodon	X
		Hyrachyidae	Hyrachyus	X
		Brontotheriidae	Protitanops (=Notiotitanops?)	X
			Telmatherium	X
		Chalicotheriidae	Moropus		X
			Tylocephalonyx??		X
		Equidae [horses]	"Hipparion"				X
			"Nannippus"				X
			Anchitherium		X
			Archaeohippus			X
			Epihippus	X
			Haplohippus	X
			Hypohippus			X
			Kalobatippus		X	X
			Merychippus			X
			Mesohippus		X
			Miohippus		X
			Neohipparion				X
			Orohippus	X
			Parahippus			X
			Pliohippus				X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Perissodactyla	Rhinocerotidae [rhinoceroses]	Aphelops			X
			Caenopus		X
			Diceratherium		X
			Subhyracodon		X
			Teleoceras			X	X
			Telataceras	X
		Helalatidae [tapir-like]	Colodon		X
		Tapiridae [tapirs]	Protapirus	X	X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Artiodactyla	Cervoidea	Dromomeryx			X
		Antilocapridae	Merycodus			X
			Sphenophalos				X
		Anthracotheriidae	Heptacodon	X
		Entelodontidae [giant "pigs"]	Archaeotherium		X
			Daeodon		X
			Entelodon		X
		Tayassuidae [peccaries]	Cynorca			X
			Perchoerus		X
			Prosthennops				X
		Agriochoeridae [clawed oreodonts]	Agriochoerus		X
			Diplobunops	X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Artiodactyla	Merycoidodontidae [oreodonts]	Dayohyus		X
			Desmatochoerus		X
			Eporeodon		X
			Eucrotaphus		X
			Hypsiops		X
			Merychyus?		X
			Merycochoerus		X
			Merycoides		X
			Mesoreodon		X
			Oreodontoides		X
			Paroreodon		X
			Phenacocoelus		X
			Promerycochoerus		X
			Pseudodesmatochoerus		X
			Pseudogenetochoerus		X
			Superdesmatochoerus		X
			Ticholeptus			X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Artiodactyla	Camelidae [camels]	camelid sp.		X
			Gentilicamelus		X
			Hemiauchenia				X
			Miolabis		X
			Oxydactylus		X
			Paratylopus		X	X
			Pliauchenia (Alticamelus)				X
			Protomeryx		X
		Moschidae [moschids]	Blastomeryx		X	X
			Parablastomeryx?			X
		Hypertragulidae [mouse-deer]	Hypertragulus		X
		Leptomerycidae [leptomerycids]	Leptomeryx		X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Rodentia	Aplodontidae [mountain beaver]	Allomys		X
			Alwoodia		X
			Haplomys		X
			Meniscomys		X
			Prosciurus		X
			Rudiomys		X
		Castoridae [beavers]	Capicikala,/i>		X
			Dipoides			X	X
			Paleocastor		X
		Cricetidae [field-mice]	Leidymys		X
			Paciculus		X
			Palustrimus		X
			Peromyscus				X
		Eomyidae	unidentified eomyid		X
		Florentiamyidae	Florentiamys		X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Rodentia	Geomyidae [gophers]	Entoptychus		X
			Grangerimus		X
			Gregorymys		X
			Pleurolicus		X
			Prodipodomys			X
			Schizodontomys		X
			Tenudomys		X
		Heteromyidae [pocket-mice]	Peridiomys			X
			Proheteromys		X
		Ischyromyidae [primitve rodents]	gen. et sp. uncertain		X
		Mylagaulidae	Mylagaulus			X	X
			Mylagaulodon		X
		Sciuridae [squirrels]	"Sciurus"		X
			Arctomyoides			X
			Miosciurus		X
			Protosciurus		X
			Spermophilus				X
		Unidentified rodent family		X
Class	Order	Family	Genus	Formations
				Clarno	John Day	Mascall	Rattlesnake
	Lagomorpha	Leporidae [rabbits]	Archeolagus		X
			Hypolagus			X	X
			Paleolagus		X
	Chiroptera	Vespertilionidae	Myotis				X
	Proboscidea	Mammutidae	Zygolophodon			X
		Gomphotheriidae	Gomphotherium			X
			Tetralophodon				X
	Primates?	Omomyidae? dermopteran?	Ekgmowechashala		X

This is a generic-level assessment of taxa based on specimens in John Day Fossil Beds National Monument collections and/or floral lists from numerous other publications by various authors. Its use is for information purposes only, not for citation in the literature.

For more information concerning these systematic data and/or species-level lists or more precise placement, please forward a request in writing to:

Ted Fremd, Paleontologist
John Day Fossil Beds National Monument
32651 Highway 19, Kimberly
Kimberly, OR 97848

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Last updated: 7/06