JOHN DAY FOSSIL BEDS
Geology and Paleoenvironments of the Clarno Unit
John Day Fossil Beds National Monument, Oregon
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APPENDIX 14:
A checklist of late Oligocene (Arikarean) fossils in the lower John Day Formation, Clarno area

OLIGOCHAETA (earthworms)

Nimravidae gen. et sp. indet.: teeth (sabre-tooth cat)
Edaphichnium sp. indet.: chimney (large earthworm)

GASTROPODA (snails)

Ammonitella lunata (Conrad) Hanna: shells (small near planispiral land snail)
Lymnaea stearnsi Hannibal: shells (medium rapidly-expanding pond snail)
Polygyra dalli (Stearns) Stearns: shell (low spired land snail)

COLEOPTERA (beetles)

Pallichnus sp. indet.: boli (dung beetle)

RHINEURIDAE (limbless lizards)

Dyticonastis rensbergerii: dermal scutes (extinct worm-lizard)

RODENTIA (rats and mice)

Allomys liolophus: teeth (extinct mountain beaver)

LAGOMORPHA (rabbits)

Leporidae gen. et sp. indet.: teeth (rabbit)

NIMRAVIDAE (sabre-tooth cats)

Note: Source of species names is T. Fremd (pers. comm. 1994).

CANIDAE (dogs)

Mesocyonjosephic Cope: teeth (foxlike)
M. brachyops Merriam: teeth (large-eyed foxlike)
Nothocyon latidens: teeth (small dog)

ENTELODONTIDAE (extinct hogs)

Entelodon sp: teeth (hog)

TAYASSUIDAE (peccaries)

Perchoerus sp. indet.: molar (peccary)

AGRIOCHOERIDAE (clawed oredonts)

Agriochoerus sp. indet.: teeth (clawed oredont)

MERYCOIDONTIDAE (oreodonts)

Merycochoerus leptacanthus Marsh: teeth (long faced oredont)
Eucrotaphus trigonocephalus Cope: teeth (high cheek boned oredont)

HYPERTRAGULIDAE (mouse deer)

Hypertragulus hesperius Hay: teeth, astragalus (mouse deer)


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Last Updated: 21-Aug-2007