This list of the Paleozoic life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US...

The Paleozoic (/ˌpæli.əˈzoʊ.ɪk, -i.oʊ-, ˌpeɪ-/ PAL-ee-ə-ZOH-ik, -⁠ee-oh-, PAY-; or Palaeozoic) Era is the first of three geological eras of the Phanerozoic...

This list of the prehistoric life of New Mexico contains the various prehistoric life-forms whose fossilized remains have been reported from within the US...

appearance in the fossil record of abundant, shell-forming and/or trace-making organisms. It is subdivided into three eras, the Paleozoic, Mesozoic and...

This list of the prehistoric life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US...

national parks, as do the territories of American Samoa and the U.S. Virgin Islands. The state with the most national parks is California with nine, followed...

the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies...

processes left large deposits of limestones, silicates, and dolomites. During the Paleozoic era, the area that is now the Mojave was again likely submerged...

comparable to the preceding Mesozoic ('middle life') and Paleozoic ('old life') Eras, as well as to the Proterozoic ('earlier life') Eon. The Cenozoic is...

straddles the California–Nevada border, east of the Sierra Nevada. The park boundaries include Death Valley, the northern section of Panamint Valley, the southern...