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Imperial
| Formation | Imperial |
|---|---|
| Member(s) | Burrobend Latrania Latrania Sand unnamed |
| Age: | 4.90 - 1.80 Ma Cenozoic |
| Interval | Blancan |
| Lithology | limestone, sandstone, sandstone/conglomerate, sandstone/"limestone", "limestone"/sandstone |
| Number of Collections | 18 |
| Number of Occurrences | 106 |
Recorded Sample Locations
Associated Units
| Stratigraphic Name | Age | Lithology | Occurrence Records |
|---|---|---|---|
| Friars - Conglomerate Tongue | 46.2 - 40.4 Ma Eocene | siliciclastic | 58 |
| Friars - Lower Tongue | 46.2 - 40.4 Ma Eocene | siliciclastic | 59 |
| Friars - Upper Tongue | 46.2 - 40.4 Ma Eocene | 258 | |
| Imperial - Burrobend | 7.25 - 5.33 Ma Miocene | sandstone/claystone | 1 |
| Imperial - Latrania | 5.33 - 3.60 Ma Neogene | sandstone, framestone, siltstone, sandstone/framestone | 14 |
| Imperial - Latrania Sand | 5.33 - 3.60 Ma Neogene | sandstone, sandstone/claystone | 102 |
| Imperial - unnamed | 383 - 372 Ma Late/Upper Devonian | limestone | 10 |
| Mission Valley | 46.2 - 40.4 Ma Eocene | siltstone, sandstone | 145 |
| Ocotillo | 1.80 - 0.30 Ma Pleistocene | 15 | |
| Ocotillo - upper Inspiration Wash | 1.80 - 0.30 Ma Pleistocene | 5 | |
| Otay | 30.8 - 20.4 Ma Cenozoic | 18 | |
| Palm Spring - Diablo/Olla | 4.90 - 1.80 Ma Cenozoic | 118 | |
| Palm Spring - Huesos/Tapiado | 1.80 - 0.30 Ma Pleistocene | 429 | |
| Pomerado - Miramar | 46.2 - 40.4 Ma Eocene | sandstone | 1 |
| San Diego | 3.60 - 1.80 Ma Cenozoic | sandstone, siltstone, conglomerate, "shale" | 237 |
| San Mateo - lower white sandstone unit | 23.0 - 5.33 Ma Miocene | 1 | |
| Santiago | 28.4 - 23.0 Ma Cenozoic | siltstone, "limestone", sandstone/siltstone | 246 |
| Santiago - C | 40.4 - 37.2 Ma Eocene | siliciclastic, sandstone, siltstone | 50 |
| La Jolla - Friars | 46.2 - 40.4 Ma Eocene | conglomerate, "siliciclastic", siltstone | 222 |
| La Jolla - Friars - Upper Tongue | 46.2 - 40.4 Ma Eocene | 35 | |
| Poway - Stadium Conglomerate - middle sandstone | 46.2 - 40.4 Ma Eocene | sandstone | 1 |
Recorded Fossils
References
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
