JDNM-8 Sheep Rock ( of the United States)

Where: Grant County, Oregon (44.5° N, 119.6° W: paleocoordinates 44.2° N, 110.7° W)

• coordinate based on unpublished field data

• local area-level geographic resolution

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

• Includes Turtle Cove though Kimberly members.

Environment/lithology: terrestrial; claystone

Size classes: macrofossils, mesofossils

Primary reference: W. W. Korth and J. L. Cavin. 2016. New material of the marsupial (Mammalia, Metatheria) Herpetotherium merriami (Stock and Furlong, 1922) from the John Day Formation, late Oligocene, Oregon, USA. Journal of Paleontology 90(6):1225-1232 [N. Famoso/N. Famoso]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 212629: 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
Mammalia
 Rodentia - Castoridae
Microtheriomys brevirhinus n. gen. n. sp.1, "Palaeocastor fossor" = Fossorcastor fossor1
Microtheriomys brevirhinus n. gen. n. sp.1 Korth and Samuels 2015 beaver
"Palaeocastor fossor" = Fossorcastor fossor1 Peterson 1905 beaver
 Rodentia - Heteromyidae
Proheteromys thorpei1
Proheteromys thorpei1 Wood 1935 rodent
 Rodentia - Sciuridae
Protosciurus rachelae1, Protosciurus mengi1
Protosciurus rachelae1 Black 1963 squirrel
Protosciurus mengi1 Black 1963 squirrel
 Primates - Ekgmowechashalidae
Ekgmowechashala zancanellai2
Ekgmowechashala zancanellai2 Samuels et al. 2015 primate
 Theriamorpha - Herpetotheriidae
Herpetotherium merriami
Herpetotherium merriami Stock and Furlong 1922 marsupial
1Korth and Samuels 2015; 2Samuels et al. 2015