Sheep Pass Formation

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Sheep Pass Formation
Stratigraphic range: Latest Cretaceous to Paleogene
TypeGeological formation
Sub-units6 members (A to F)
Location
RegionNevada
CountryUnited States

The Sheep Pass Formation is a geologic formation in Nevada. It preserves fossils dating back to the Paleogene period.

Fossil content

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Vertebrates

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Mammals
Genus Species Presence Material Notes Images
Apatemys A. bellus Near Ely, Nevada.[1] An apatothere.
Elymys E. complexus Near Ely, Nevada.[2] A rodent, possibly of the family Zapodidae.
Ischyromyidae Near Ely, Nevada.[2]
Knightomys Near Ely, Nevada.[2] A rodent represented by material not assignable to species.[2]
Mattimys Near Ely, Nevada.[2] A rodent represented by material not assignable to species.[2]
Microparamys M. sambucus Near Ely, Nevada.[2] A rodent.
Notharctus N. tenebrosus Near Ely, Nevada.[1] Upper and lower jaws.[3] A primate.
File:Notharctus tenebrosus paris.JPG
Nyctitheriidae Near Ely, Nevada.[1] At least one nyctitheriid present.
Palaeochiropteryx P. sambuceus "Elderberry Canyon Quarry in the Egan Range near Ely, White Pine County".[4] Partial skeleton (USNM PAL 417350) and left dentary (USNM PAL 706598).[4] A palaeochiropterygid bat.
File:Palaeochiropteryx - 3d Reconstruction.jpg
Pantolestes P. longicaudus Near Ely, Nevada.[1] A pantolestid.
Pauromys P. exallos Near Ely, Nevada.[2] A rodent.
Reithroparamys R. delicatissimus Near Ely, Nevada.[2] A rodent.
cf. R. huerfanensis Near Ely, Nevada.[2] A rodent.
Sciuravus S. sp. Near Ely, Nevada.[2] A rodent represented by material not assignable to species.[2]
Sonor S. handae "Elderberry Canyon Quarry in the Egan Range near Ely, White Pine County".[4] Left dentary (USNM PAL 544091).[4] A vespertilionid bat.
cf. Tetrapassalus cf. T. mckennai Near Ely, Nevada.[1] An epoicotheriid.
Trogolemur T. myodes Near Ely, Nevada.[1] An anaptomorphine primate.
Volactrix V. simmonsae "Elderberry Canyon Quarry in the Egan Range near Ely, White Pine County".[4] Right and left dentaries.[4] An onychonycterid bat.
Amphibians
Genus Species Presence Material Notes Images
Eorubeta E. nevadensis Member C (south Egan Range).[5][6] A frog.
Palaeobatrachus P. occidentalis Member B.[6] A frog.

Invertebrates

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Crustaceans
Genus Species Presence Material Notes Images
Clinocypris? C.? sp. Member B.[5] An ostracod.
Cypridea C. bicostata Member B.[5] An ostracod.
Paracypridopsis? P.? sp. Member B.[5] An ostracod.
Molluscs
Genus Species Presence Material Notes Images
Hydrobia Member B.[5] A snail.
Valvata Member B.[5] A snail.

See also

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References

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