The Sheep Pass Formation is a geologic formation in Nevada. It preserves fossils dating back to the Paleogene period.
Sheep Pass Formation | |
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Stratigraphic range: Latest Cretaceous to Paleogene | |
Type | Geological formation |
Sub-units | 6 members (A to F) |
Location | |
Region | Nevada |
Country | United States |
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. | |
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. | |
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. |
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. |