page_title: List of the Mesozoic life of California
section_title: C
hierarchical_section_title: List of the Mesozoic life of California / C
caption_attribution_description: Collignoniceras woolgari, from Bílá Hora, Prague, Czech Republic, at the National Museum (Prague)
context_page_description: 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.
context_section_description: †Califadesma
  †Califadesma elaphium
  †Californigonia – type locality for genus
  †Californigonia plumasensis – type locality for species. Formerly classified as Trigonia plumasensis.
  †Californites – type locality for genus
  †Californites careyi – type locality for species
  †Californites merriami – type locality for species
    †Californosaurus
  Callianassa – tentative report
  †Calliconites
  †Calliconites drakei – type locality for species
  †Calliomphalus – tentative report
  Callista – tentative report
  †Callista pseudoplana – or unidentified related form
  †Callista subtrigona
  †Callistalox
  †Callistalox fragilis
  †Calva
  †Calva crassa
  †Calva elderi
  †Calva nitida
  †Calva peninsularis
  †Calva spissa
  †Calva taffi
  †Calva varians
    †Calycoceras
  †Calycoceras naviculare
  †Camptonectes
  †Camptonectes curvatus – or unidentified comparable form
  †Canadoceras
  †Canadoceras celeste – type locality for species
  †Canadoceras fraternum
  †Canadoceras mysticum
  †Canadoceras newberryanum
  †Canadoceras subtilobatum – or unidentified related form
  Cancellaria – tentative report
  †Canelonus
  †Canelonus conus
  †Caneta
  †Caneta hsui
  †Canoptum
  †Canoptum anulatum
  †Canoptum poissoni
  †Canoptum rugosum
  Cantharus
  †Cantharus occidentalis
  †Canutus
  †Canutus giganteus
  †Canutus rockfishensis
   Capulus – or unidentified comparable form
  †Capulus silverthorni – type locality for species
  Cardinia
  †Cardinia gleimi – type locality for species
  †Cardiomorpha – tentative report
  †Cardiomorpha digglesi – type locality for species
  Cardita
  †Cardita jenkinsi – type locality for species
  †Cassideus
  †Cassideus yoloensis
  †Cecrops
  †Cecrops septemporata
  †Cecrops septemporatus
  †Celtites
  †Celtites steindachneri
  Cenodiscus
  †Cenodiscus alievi
  Cenosphaera
  †Cenosphaera boria
  †Ceriostella
  †Ceriostella martini
  Cerithidea
     Cerithium
  †Cerithium alternata
  †Cerithium totiumsanctorum – or unidentified comparable form
  †Choristoceras
  †Choristoceras klamathense – type locality for species
  †Choristoceras marshi
  †Christitys – type locality for genus
  †Christitys delta – type locality for species
  †Christitys martini – or unidentified comparable form
  †Christitys medica – type locality for species
  †Cidarina
  †Cidarina beta – type locality for species
  †Cidarina cretacea – type locality for species
   Cidaris
  †Cidaris californicus
  †Cidaris plumasensis
  †Cidaris taylorensis
  †Cladoceramus
  †Cladoceramus undulatoplicatus
  †Clinura
  †Clinura anassa
  †Clisocolus
  †Clisocolus cordatus
  †Clisocolus corrugatus
  †Clisocolus dubius
   †Collignoniceras
  †Collignoniceras bakeri
  †Collonia
  †Collonia occidentalis – type locality for species
  †Cophocara
  †Cophocara stantoni
  †Coralliochama
  †Coralliochama orcutti
  Corbicula
  †Corbicula astartoides
  Corbula
  †Corbula cancellifera
  †Corbula parilis
  †Corbula pozo
  †Corbula torta – or unidentified comparable form
  †Corbula traski
  †Corbula traskii
  Cornutella
  †Cosmonautilus
  †Cosmonautilus dilleri
  †Cosmonautilus hersheyi – type locality for species
  †Cosmonautilus pacificus – type locality for species
  †Cosmonautilus shastensis – type locality for species
  †Costispiriferina
  †Costispiriferina pittensis
  †Courtilloticeras
  †Courtilloticeras stevensi – type locality for species
  Crassatella
  †Crassatella conradiana
  †Crassatella mercedensis – tentative report
  †Crassatella saulae
  †Crassatella triangulata
  †Crassatella triangulatus
  †Crassatellina
  †Crassatellina saulae
    †Crioceratites
  †Crioceratites latus
  †Crioceratites tehamaensis – or unidentified comparable form
  †Crolanium
  †Crolanium triquetrum
  †Crucella
  †Crucella linda
  †Crucella magna
  †Crucella messinae
  †Crucella theokaftensis
  Cucullaea
  †Cucullaea alamoensis – type locality for species
  †Cucullaea bowersiana
  †Cucullaea gravida
  †Cucullaea truncata
  †Cucullaea youngi
  †Cunningtoniceras
  †Cunningtoniceras meridionale – or unidentified related form
  †Cyclothyris
  †Cyclothyris densleonis
  Cylichna
  †Cylichna andersoni
  †Cylindroteuthis
   †Cymatoceras
  †Cymatoceras carlottense
  †Cymatoceras hermosus – type locality for species
  †Cymbophora
  †Cymbophora asburnerii
  †Cymbophora ashburnensis – or unidentified related form
  †Cymbophora ashburnerii
  †Cymbophora bella – or unidentified comparable form
  †Cymbophora g
caption: Fossilized shell of the Late Cretaceous ammonoid Collignoniceras
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