PBDB Collection

John Day Units E and F (Oligocene of the United States)

Also known as Upper Foree Section

Where: Wheeler County, Oregon (44.7° N, 119.6° W: paleocoordinates 44.3° N, 109.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Turtle Cove Member (John Day Formation), Geringian (30.8 - 26.3 Ma)

• SCLF AA date of 28.9 Ma on Blue Basin Tuff between units E and F

• member-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: E. D. Cope. 1879. Scientific news. The American Naturalist 13(12):798a-798b [M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 93078: authorized by John Alroy, entered by John Alroy on 28.12.2009, edited by Chris Bell, Mark Uhen and Nicholas Famoso

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Reptilia
Squamata - Rhineuridae	Dyticonastis rensbergeri² Dyticonastis rensbergeri² Berman 1976 worm lizard type specimen "Collected from below the Picture Gorge ignimbrite of the Turtle Cove Member of the John Day Formation (See Fisher and Rensberger, 1973) at UCMP South Canyon locality (V-6630), in SE1/4 sec. 3, T. 19 S., R. 20 E., Crescent Quadrangle Oregon. This level has been determined as late Whitneyan (latest Oligocene in age." (p. 168)
Mammalia
Carnivora - Mustelidae	Corumictis wolsani n. gen. n. sp.⁵ Corumictis wolsani n. gen. n. sp.⁵ Paterson et al. 2020 mustelid carnivore
Carnivora - Amphicyonidae	Daphoenus sp.¹ Daphoenus sp.¹ Leidy 1853 bear-dog
Carnivora - Canidae	Cormocyon copei¹, Phlaocyon latidens¹, Cynarctoides lemur¹, Rhizocyon oregonensis¹, Leptocyon mollis¹, Mesocyon coryphaeus¹, Mesocyon brachyops¹, Paraenhydrocyon josephi¹, Osbornodon sesnoni¹ Cormocyon copei¹ Wang and Tedford 1992 bone-crushing dog unit F: Wang et al. 1999 Phlaocyon latidens¹ Cope 1881 bone-crushing dog present in units D, E1, E2, E3, F: Wang et al. 1999 Cynarctoides lemur¹ Cope 1879 bone-crushing dog present in units D, E1, E2, E3: Wang et al. 1999 Rhizocyon oregonensis¹ Merriam 1906 bone-crushing dog present in Beds E and F: Wang et al. 1999 Leptocyon mollis¹ Merriam 1906 canine may by "Nothocyon geismarianus mollis" of Merriam and Sinclair 1907 Mesocyon coryphaeus¹ Cope 1879 canid present at UCMP V-6630 South Canyon, Deschutes Co.: Wang 1994 Mesocyon brachyops¹ Merriam 1906 canid Paraenhydrocyon josephi¹ Cope 1881 canid Osbornodon sesnoni¹ Macdonald 1967 canid
Carnivora - Nimravidae	Nimravus brachyops¹, Dinaelurus crassus¹, "Hoplophoneus platycopis n. sp." = Pogonodon platycopis, "Dinictis cyclops" = Dinictis felina¹ Nimravus brachyops¹ Cope 1878 false sabre-tooth Dinaelurus crassus¹ Eaton 1922 false sabre-tooth presumably the type of Eaton 1922 "Hoplophoneus platycopis n. sp." = Pogonodon platycopis Cope 1879 false sabre-tooth includes "Nimravus davisi" of Fremd et al. 1994; this is the type specimen according to Bryant and Fremd 1998 and is from above the Blue Basin Tuff; Fremd et al. also list playtcopis under Nimravus "Dinictis cyclops" = Dinictis felina¹ Leidy 1854 false sabre-tooth
Carnivora - Palaeogalidae	Palaeogale sp.³ Palaeogale sp.³ von Meyer 1846 carnivoran
Perissodactyla - Equidae	Miohippus sp.¹ Miohippus sp.¹ Marsh 1874 anchitheriine horse
Perissodactyla - Rhinocerotidae	Diceratherium sp.¹ Diceratherium sp.¹ Marsh 1875 rhinoceros
Artiodactyla - Entelodontidae	Archaeotherium sp.¹ Archaeotherium sp.¹ Leidy 1850 even-toed ungulate see Foss and Fremd 1998
Artiodactyla - Merycoidodontidae	Eporeodon occidentalis¹, "Eporeodon bullatus" = Merycoidodon bullatus¹ Eporeodon occidentalis¹ Marsh 1873 oreodont includes "E. pacificus" and possibly "Eucrotaphus trigonocephalus," "Eucrotaphus condoni," "Pseudogenetochoerus covensis," and/or "Hypsiops johndayensis" of Fremd et al. 1994 "Eporeodon bullatus" = Merycoidodon bullatus¹ Leidy 1869 oreodont
Artiodactyla - Agriochoeridae	Agriochoerus guyotianus¹ Agriochoerus guyotianus¹ Cope 1878 agriochoerid
Artiodactyla - Hypertragulidae	"Nanotragulus planiceps" = Hypertragulus planiceps¹, Hypertragulus hesperius¹ "Nanotragulus planiceps" = Hypertragulus planiceps¹ Sinclair 1905 ruminant Hypertragulus hesperius¹ Hay 1902 ruminant
Theriamorpha - Micropternodontidae	Micropternodus morgani⁴ Micropternodus morgani⁴ Stirton and Rensberger 1964 placental omitted by Albright et al. 2008; possibly from unit D
Lagomorpha - Leporidae	"Archaeolagus ennisianus" = Lepus ennisianus¹ "Archaeolagus ennisianus" = Lepus ennisianus¹ Cope 1881 hare
Rodentia - Allomyidae	Haplomys liolophus¹, Allomys sp.¹ Haplomys liolophus¹ Cope 1881 rodent Allomys sp.¹ Marsh 1877 rodent
Rodentia - Sciuridae	Miosciurus ballovianus⁴ Miosciurus ballovianus⁴ Cope 1881 squirrel omitted by Albright et al. 2008; possibly from unit D
Rodentia - Castoridae	Palaeocastor peninsulatus¹ Palaeocastor peninsulatus¹ Cope 1881 beaver

¹Albright et al. 2008; ²Berman 1976; ³Famoso and Orcutt 2022; ⁴Fremd 1994; ⁵Paterson et al. 2020