Chico Formation
Introduction The '''Chico Formation''' is a geologic formation of the Campanian Age during the Cretaceous Period, found in California and southern Oregon.
Geology The MesozoicEra formation can regionally overlie the Vaqueros Formation, and can regionally underlie the Martinez Formation or Tejon Formation.The Chico Formation is exposed in the Southern California Coast Ranges, western San Joaquin Valley, north of Mount Diablo, and in the Chico area of the northeastern Sacramento Valley.It is also found in the eastern Simi Hills in Bell Canyon and Dayton Canyon, located in Los Angeles and Ventura Counties, near the community of West Hills.
Paleofauna Dinosaur remains are among the fossils that have been recovered from the formation, from the Late Cretaceous of the Mesozoic Era.===Species===The lizard and bird species listed in the table below date from the Late Cretaceous Epoch. '''Vertebrates of the Chico Formation''' Genus Species Location Member Abundance Notes Images''Clidastes''''Hesperornis''''Hesperornis''''Ichthyornis''indet. Pteranodontidae
See also * List of fossiliferous stratigraphic units in California** List of dinosaur-bearing rock formations** List of stratigraphic units with indeterminate dinosaur fossils* * Paleontology in California
References