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Map showing which states have state fossils (in blue; states without fossils are gray.) Most American states have made a state fossil designation, in many cases during the 1980s. It is common to designate one species in which fossilization has occurred, rather than a single specimen, or a category of fossils not limited to a single species.
One of the most famous of prehistoric mammals, Smilodon has often been featured in popular media and is the state fossil of California. Evolution Partial skull of S. gracilis, the earliest species in the genus, Academy of Natural Sciences of Philadelphia
Local fossils came to the attention of formally trained scientists by the mid-19th century. Major finds include the Pleistocene mammal fossils of the La Brea tar pits. The Pleistocene saber-toothed cat Smilodon fatalis is the California state fossil.
La Brea Tar Pits fauna as depicted by Charles R. Knight. Among the prehistoric Pleistocene species associated with the La Brea Tar Pits are Columbian mammoths, dire wolves, short-faced bears, American lions, ground sloths (predominantly Paramylodon harlani, with much rarer Megalonyx jeffersonii and Nothrotheriops shastensis), coyotes, ancient bison, and the state fossil of California, the ...
List of U.S. state dinosaurs. This is a list of U.S. state dinosaurs in the United States, including the District of Columbia. Many states also have dinosaurs as state fossils, or designate named avian dinosaurs ( List of U.S. state birds ), but this list only includes those that have been officially designated as "state dinosaurs".
Selected Cenozoic taxa of California. Life restoration of the Miocene camel Aepycamelus, or the long-necked camel. Heinrich Harder (1920). Life restoration of the Pleistocene bovid Euceratherium, or the shrub ox. Robert Bruce Horsfall (1913). Life restoration of a herd of the Miocene-Pleistocene horse Hipparion.
The oldest rocks in California date back 1.8 billion years to the Proterozoic and are found in the San Gabriel Mountains, San Bernardino Mountains, and Mojave Desert. The rocks of eastern California formed a shallow continental shelf, with massive deposition of limestone during the Paleozoic, and sediments from this time are common in the ...
List of the Mesozoic life of California. This list of the Mesozoic life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of California and are between 252.17 and 66 million years of age.