| Pomerado Conglomerate Formation | |
| Type: | Geologic formation |
| Period: | Eocene |
| Age: | Late Eocene |
| Prilithology: | conglomerate |
| Namedfor: | Pomerado Road |
| Region: | San Diego County, California |
| Overlies: | Mission Valley Formation |
| Thickness: | 0m-55mm (00feet-180feetm) |
The Pomerado Conglomerate Formation is a geologic formation in southwestern San Diego County, California.[1] [2]
It was named for exposures located along Pomerado Road, at the divide between Carroll Canyon and Poway Valley.[1]
The Pomerado Conglomerate is of the Late Eocene Epoch, and is a massive cobble conglomerate. It is lithologically identical to the local Stadium Conglomerate.[1]
It overlies the sandstone Mission Valley Formation.[1] It is the uppermost formation of the Poway Group, and has a maximum thickness of 55m (180feet).[1]
The Pomerado Conglomerate preserves fossils dating back to the Late Eocene Epoch of the Paleogene period, during the Cenozoic Era.[3]
| Ferae reported from the Pomerado Conglomerate | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Carnivoraformes undet. Genus B | SDSNH locality 3757, Scripps Ranch North Site 57, Miramar Sandstone Member.[4] | SDSNH 56335, cranium with right and left P4-M2. | |||
| Hyaenodon | cf. H. sp. | Upper Member.[5] | "SDSNH 60554, right maxillary fragment with P3–P4". | Specimen reidentified as the nimravid Pangurban. | |
| Pangurban | P. egiae | Upper Member. | "SDSNH 60554, right maxillary fragment with P3–P4". | A nimravid, originally reported as cf. Hyaenodon sp. | |
| Rodents reported from the Pomerado Conglomerate | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Nonomyinae | Indeterminate | Isolated m1 (SDSNH 72232).[6] | "An unnamed new taxon of nonomyine morphologically intermediate between Nonomys and Diplolophus." | ||
| Nonomys | N. gutzleri | Isolated teeth. | A myomorph. | ||