page_title: List of the Paleozoic life of Utah
section_title: C
hierarchical_section_title: List of the Paleozoic life of Utah / C
caption_attribution_description: English: A Cedaria minor trilobite, 11mm, Order Ptychopariida, Family Cedariidae, collected from the Weeks Formation, House Range, Millard County, Utah, USA, from the early Upper Cambrian
context_page_description: This list of the Paleozoic life of Utah contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Utah and are between 541 and 252.17 million years of age.
context_section_description: †Cactocrinus
  †Cactocrinus arnoldi
   †Calamites
  †Calamites cistii – or unidentified comparable form
  †Calamites cistiiformis
  †Calamites gigas
  †Calamites hesperius
  †Calamites infractus
  †Calamites suckowii
  †Calamostachys – tentative report
  †Calathium
  †Calathium yersini – type locality for species
  †Callipteris – tentative report
  †Callocladia
  †Callocladia jensensis
  †Calycocoelia
  †Calygirtyoceras
  †Calygirtyoceras arcticum
  †Calygirtyoceras confusionense – type locality for species
  †Camarotoechia
  †Cambromedusa – type locality for genus
  †Cambromedusa furcula – type locality for species
  †Camerella
  †Campbelloceras – tentative report
   †Canadaspis
  †Canadaspis perfecta – or unidentified comparable form
  †Canadia
  †Canadiphyllum
  †Cancrinella
  †Cancrinella phosphatica – or unidentified comparable form
  †Caninaphyllum
  †Caninaphyllum incrussatum
  †Caninia
  †Caninia torquia
  †Caninophyllum
  †Canthylotreta
  †Canthylotreta marjumensis
  †Cardiomorpha
  †Cardiopteris
  †Cardiopteris hirta – or unidentified comparable form
  †Carolinites
  †Carolinites ekphymosus
  †Carolinites genacinaca – type locality for species
  †Carolinites killarnyensis
  †Carolinites killaryensis
  †Castericystis
  †Castericystis sprinklei – type locality for species
  †Castericystis vali – type locality for species
  †Catoraphiceras
  †Catoraphiceras colon
  †Caulpsis
  †Caulpsis punctata
  †Cavusgnathus
  †Cavusgnathus regularis
  †Cavusgnathus unicornis
   †Cedaria
  †Cedaria minor
  †Cedarina – tentative report
  †Cenorhynchia
  †Cenorhynchia type locality for species A – informal
  †Cernuolimbus
  †Cernuolimbus granulosus
  †Chaenomya
  †Chaetetes
  †Chaetetes milleporaceous
  †Chancelloria
  †Chancelloria eros
  †Chancelloria pentacta – type locality for species
  †Chancia (genus)
  †Chancia ebdome – or unidentified comparable form
  †Chanciaopsis – type locality for genus
  †Chanciaopsis heteromorphos – type locality for species
  †Chanciopsis
  †Chanciopsis heteromorphos
  †Cheilocephalus
  †Chilotrypa
   †Choia
  †Choia carteri
  †Choia hindei
  †Choia ridleyi
  †Choia utahensis
  †Chondrites
  †Chonetes
  †Chonetina
  †Chonetina flemingi
  †Choristites
  †Choristites fritschi – or unidentified comparable form
  †Choristites pavlovi – or unidentified comparable form
   †Cladochonus
  †Clathrospira – tentative report
  †Clavagnostus
  †Clavagnostus repandus
  †Cleiothyridina
  †Cleiothyridina type locality for species A – informal
  †Cleiothyridina type locality for species B – informal
  †Clelandia
  †Clelandia utahensis
  †Cliothyridina
  †Cliothyridina orbicularis
  †Clonograptus
  †Coelogasteroceras
  †Coenites
  †Colinispongia
  †Colinispongia regularis
   †Composita
  †Composita argentea
  †Composita mira
  †Composita ovata
  †Composita parasulcata
  †Composita plana
  †Composita subtilita
  †Composita trilobata
  †Composita trinuclea
  †Condrathyris
  †Condrathyris perplexa
  †Conotreta
  †Conotreta millardensis
  †Coosella
  †Coosina
  †Cordaianthus
  †Cordaianthus pseudofluitans
  †Cordaicarpus
  †Cordaicarpus binutus – type locality for species
  †Cordaicarpus cordatus
  †Cordaicarpus elongatus
  †Cordaicarpus globosus – type locality for species
  †Cordaicarpus jayshulerii – type locality for species
  †Cordaicarpus manningcanensis – type locality for species
   †Cordaites
  †Cordaites angulosostriatus
  †Cordaites principalis
  †Cordaites Sp. A – informal
  †Cordaites Sp. B – informal
  †Cornucarpus
  †Cornucarpus longicaudatus – type locality for species
  †Corynepteris
  †Corynepteris angustissima
  †Costellarina
  †Cotalagnostus
  Crania
  †Crania rowleyi
  †Cravenoceras
  †Crepicephalus
  †Crossopteris – type locality for genus
  †Crossopteris mcknightii – type locality for species
  †Crossopteris undulata – type locality for species
  †Crossopteris utahensis – type locality for species
  †Crurithyris
  †Crurithyris arcuatus – or unidentified comparable form
  †Crurithyris expansa – tentative report
  †Cruziana
  †Ctenalosia
  †Ctenalosia fixata
  †Ctenocystis
  †Ctenocystis utahensis
   †Ctenospondylus
  †Ctenospondylus casei – or unidentified related form
  †Cyathaxonia
  †Cyathocarpus
  †Cyathocarpus arborescens
  †Cyathocarpus cyatheus
  †Cybeloides
  †Cybelopsis
  †Cybelopsis speciosa
   †Cyclopteris
  †Cyclopteris dilatata
  †Cymatospira
  †Cymatospira montfortianus
  †Cymbiocrinus
  †Cymbiocrinus anatonus – t
caption: Fossil of the Cambrian trilobite Cedaria
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