| Sheep Pass Formation | |
| Type: | Geological formation |
| Age: | Latest Cretaceous to Paleogene |
| Region: | Nevada |
| Subunits: | 6 members (A to F) |
The Sheep Pass Formation is a geologic formation in Nevada. It preserves fossils dating back to the Paleogene period.
| 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. | ||||
| Knightomys | Near Ely, Nevada. | A rodent represented by material not assignable to species. | |||
| Mattimys | Near Ely, Nevada. | A rodent represented by material not assignable to species. | |||
| Microparamys | M. sambucus | Near Ely, Nevada. | A rodent. | ||
| Notharctus | N. tenebrosus | Near Ely, Nevada. | Upper and lower jaws.[3] | A primate. | |
| Nyctitheriidae | Near Ely, Nevada. | 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). | A palaeochiropterygid bat. | |
| Pantolestes | P. longicaudus | Near Ely, Nevada. | A pantolestid. | ||
| Pauromys | P. exallos | Near Ely, Nevada. | A rodent. | ||
| Reithroparamys | R. delicatissimus | Near Ely, Nevada. | A rodent. | ||
| cf. R. huerfanensis | Near Ely, Nevada. | A rodent. | |||
| Sciuravus | S. sp. | Near Ely, Nevada. | A rodent represented by material not assignable to species. | ||
| Sonor | S. handae | "Elderberry Canyon Quarry in the Egan Range near Ely, White Pine County". | Left dentary (USNM PAL 544091). | A vespertilionid bat. | |
| cf. Tetrapassalus | cf. T. mckennai | Near Ely, Nevada. | An epoicotheriid. | ||
| Trogolemur | T. myodes | Near Ely, Nevada. | An anaptomorphine primate. | ||
| Volactrix | V. simmonsae | "Elderberry Canyon Quarry in the Egan Range near Ely, White Pine County". | Right and left dentaries. | 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. | A frog. | ||
| Crustaceans | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Clinocypris? | C.? sp. | Member B. | An ostracod. | ||
| Cypridea | C. bicostata | Member B. | An ostracod. | ||
| Paracypridopsis? | P.? sp. | Member B. | An ostracod. | ||
| Molluscs | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Hydrobia | Member B. | A snail. | |||
| Valvata | Member B. | A snail. | |||