Chanac Formation
# Chanac Formation

The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.

## 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. It is composed of sandstone and cobble conglomerate. It overlies the Miocene period Santa Margarita Formation.

It preserves fossils dating back to the Neogene period.

## 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. | Left molar (LACM 16585). | A borophagine dog also found in the Green Valley, Santa Margarita and Dove Spring formations. | |
| Epicyon | E. haydeni | North Tejon Hills, Kern County, California. | Nuchal fragment of skull (LACM 16581). | A borophagine dog. | |
