Pomerado Conglomerate
| Pomerado Conglomerate Formation | |
|---|---|
Geologic formation | |
| Overlies | Mission Valley Formation |
| Thickness | 0–55 metres (0–180 ft) |
| Lithology | |
| Primary | conglomerate |
| Location | |
| Region | San Diego County, California |
| Country |  United States |
| Type section | |
| Named for | Pomerado Road |
The Pomerado Conglomerate Formation is a
It was named for exposures located along Pomerado Road, at the divide between Carroll Canyon and Poway Valley.[1]
Geology
The Pomerado Conglomerate is of the
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 55 metres (180 ft).[1]
Fossil content
Color key
|
Notes Uncertain or tentative taxa are in small text; |
The Pomerado Conglomerate preserves
Cenozoic Era.[3]
Mammals
Ferae
| 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.[4] | |||
| Hyaenodon | cf. H. sp. | Upper Member.[5] | " SDSNH 60554, right maxillary fragment with P3–P4".[5]
|
Specimen reidentified as the nimravid Pangurban. | |
| Pangurban | P. egiae | Upper Member.[5] | " SDSNH 60554, right maxillary fragment with P3–P4".[5]
|
A nimravid, originally reported as cf. Hyaenodon sp. | |
Rodents
| 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."[6] | ||
| Nonomys | N. gutzleri | Isolated teeth.[6] | A myomorph. | ||
See also
- Geology of San Diego County, California
- Paleogene Period in California
- List of fossiliferous stratigraphic units in California
- Paleontology in California
References
- ^ a b c d e Kennedy, Michael P. (1975). Geology of the San Diego metropolitan area, California. California Division of Mines and Geology.
- ^ Geiconsultants.com: Geologic Formations of Western San Diego County[permanent dead link], by Jeffrey D. Brown, R.G., C.E.G. − circa 1996.
- ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
- ^ ISSN 1094-8074.
- ^ S2CID 252818430.
- ^ S2CID 129569996.
Further reading
- "General Plan Final Program EIR: 3.11 Paleontological Resources" (PDF). City of San Diego.