Lonerock Area ( of the United States)

Also known as JDNM-140, Lone Rock Site 50

Where: Gilliam County, Oregon (45.1° N, 119.9° W: paleocoordinates 44.8° N, 110.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Kimberly Member (John Day Formation), Arikareean (29.5 - 18.5 Ma)

Environment/lithology: terrestrial; silty sandstone

Size classes: macrofossils, mesofossils

Collection methods: bulk, surface (float), surface (in situ), sieve

Primary reference: T. J. Fremd and D. P. Whistler. 2009. Preliminary description of a new microvertebrate assemblage from the Arikareean (early Miocene) John Day Formation, central Oregon. In L. B. Albright (ed.), Museum of Northern Arizona Bulletin 65:159-170 [N. Famoso/N. Famoso]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 212628: authorized by Nicholas Famoso, entered by Nicholas Famoso on 18.08.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Amphibia
 Caudata - Urodela
? Plethodontidae indet.
? Plethodontidae indet. Gray 1850 lungless salamander
Reptilia
 Squamata - Anguidae
Anguidae indet.
Anguidae indet. Gray 1825 squamates
 Squamata - Loxocemidae
cf. Ogmophis sp.
cf. Ogmophis sp. Cope 1844 Mexican burrowing snake
Mammalia
 Theriamorpha - Talpidae
Scalopoides sp.
Scalopoides sp. Wilson 1960 mole
 Theriamorpha - Proscalopidae
Proscalops sp., Proscalops "sp. A", Proscalops "n. sp.", Proscalops cf. secundus
Proscalops sp. Matthew 1901 placental
Proscalops "sp. A" Matthew 1901 placental
Proscalops "n. sp." Matthew 1901 placental
Proscalops cf. secundus Matthew 1909 placental
 Theriamorpha - Soricidae
Wilsonosorex cf. conulatus, cf. Domnina sp.
Wilsonosorex cf. conulatus Martin 1978 shrew
cf. Domnina sp. Cope 1873 shrew
 Theriamorpha - Erinaceidae
cf. Amphechinus sp.
cf. Amphechinus sp. Aymard 1850 hedgehog
 Carnivora - Palaeogalidae
Palaeogale dorothiae
Palaeogale dorothiae Macdonald 1963 carnivoran
 Rodentia - Allomyidae
Alwoodia cf. magna
Alwoodia cf. magna Rensberger 1983 rodent
 Rodentia - Entoptychidae
Entoptychus spp.
Entoptychus spp. Cope 1878 rodent
 Rodentia - Castoridae
Capacikala sp.
Capacikala sp. Macdonald 1963 beaver
 Rodentia - Heteromyidae
Proheteromys cf. sulcus
 Rodentia - Eomyidae
cf. Apeomys sp., Leptodontomys "n. sp.", Leptodontomys cf. douglassi, cf. Arikareeomys "n. sp."
cf. Apeomys sp. Fahlbusch 1968 rodent
Leptodontomys "n. sp." Shotwell 1956 rodent
Leptodontomys cf. douglassi Burke 1934 rodent
cf. Arikareeomys "n. sp." Korth 1992 rodent
 Rodentia - Sciuridae
Protosciurus sp., ? Protosciurus "n. sp.", Protosciurus rachelae, Protosciurus condoni, cf. Petauristodon sp.
Protosciurus sp. Black 1963 squirrel
? Protosciurus "n. sp." Black 1963 squirrel
Protosciurus rachelae Black 1963 squirrel
Protosciurus condoni Black 1963 squirrel
cf. Petauristodon sp. Engesser 1979 squirrel
 Rodentia - Aplodontidae
cf. Campestrallomys sp., Meniscomys spp.
cf. Campestrallomys sp. Korth 1989 mountain beaver
Meniscomys spp. Cope 1878 mountain beaver
 Rodentia - Cricetidae
Leidymys nematodon, Leidymys lockingtonianus, Leidymys cf. alicae, Paciculus sp.
Leidymys nematodon Cope 1879 mouse
Leidymys lockingtonianus Cope 1881 mouse
Leidymys cf. alicae Black 1961 mouse
Paciculus sp. Cope 1879 mouse
 Rodentia - Zapodidae
"Plesiosminthus clivosus" = Schaubeumys clivosus
"Plesiosminthus clivosus" = Schaubeumys clivosus Galbreath 1953 jumping mouse
 Lagomorpha - Leporidae
cf. Archaeolagus sp., cf. Desmatolagus sp.
cf. Archaeolagus sp. Dice 1917 rabbit
cf. Desmatolagus sp. Matthew and Granger 1923 rabbit
 Theriamorpha - Herpetotheriidae
Herpetotherium merriami, Copedelphys "n. sp."
Herpetotherium merriami Stock and Furlong 1922 marsupial
Copedelphys "n. sp." Korth 1994 marsupial