Chanac Formation
Geologic formation in the San Joaquin Valley, California, US
From Wikipedia, the free encyclopedia
The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.[1]
UnderliesEtchegoin Formation, Kern River Beds Formation
OverliesSanta Margarita Formation
| Chanac Formation | |
|---|---|
| Stratigraphic range: Neogene | |
| Type | Geological formation |
| Underlies | Etchegoin Formation, Kern River Beds Formation |
| Overlies | Santa Margarita Formation |
| Location | |
| Region | San Joaquin Valley, Kern County, California |
| Country | United States |
Geology
The Kern River Series is divided into the lower Chanac Formation unit, and the upper Kern River Beds Formation unit, with the wedge of the Etchegoin Formation in the middle in the western section.[1] It is composed of sandstone and cobble conglomerate.[1] It overlies the Miocene period Santa Margarita Formation.
Fossil content
Mammals
Carnivorans
| Carnivorans reported from the Chanac Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Borophagus | B. littoralis | North Tejon Hills, Kern County, California.[3] | Left molar (LACM 16585).[3] | A borophagine dog also found in the Green Valley, Santa Margarita and Dove Spring formations. |  |
| Epicyon | E. haydeni | North Tejon Hills, Kern County, California.[3] | Nuchal fragment of skull (LACM 16581).[3] | A borophagine dog. |  |
