page_title: List of the Mesozoic life of Montana
section_title: C
hierarchical_section_title: List of the Mesozoic life of Montana / C
caption_attribution_description: Clidastes prophyton
context_page_description: This list of the Mesozoic life of Montana contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Montana and are between 252.17 and 66 million years of age.
context_section_description: †Camarasaurus
  Campeloma
  †Camptonectes
  †Camptonectes platessiformis
  †Camptonectes stygius
  Carcharias
  †Cardiaster
  †Cardiaster curtus
  †Carinalestes – type locality for genus
  †Carinalestes murensis – type locality for species
  †Cedrobaena
  †Cedrobaena brinkman
  †Celastrophyllum – or unidentified comparable form
   †Centrosaurus
  †Cerasinops – type locality for genus
  †Cerasinops hodgskissi – type locality for species
  †Ceratodus
  †Ceratodus frazieri
  †Ceratodus guentheri – or unidentified comparable form
  †Ceratops – type locality for genus
  †Ceratops montanus – type locality for species
  †Cerberophis – type locality for genus
  †Cerberophis robustus – type locality for species
  †Cercomya
  †Cercomya punctata
  †Chamops
  †Chamops segnis
  †Champsosaurus
  †Champsosaurus natator
   †Chasmosaurus – or unidentified comparable form
  Chiloscyllium
  †Chiloscyllium missouriensis – type locality for species
  †Chirostenotes
  †Chirostenotes elegans
  Chlamys
  †Chondroceras
  †Chondroceras allani – or unidentified comparable form
  †Chondroceras oblatum
  †Cimexomys
  †Cimexomys minor
  †Cimolestes
  †Cimolestes incisus
  †Cimolestes stirtoni
  †Cimoliasaurus
  †Cimolodon
  †Cimolodon nitidus
   †Cimolomys
  †Cimolomys clarki – type locality for species
  †Cimolomys gracilis
  †Cimolopteryx
  †Cimolopteryx maxima
  †Cinnamomoides
  Cladophlebis
  †Cladophlebis alberta
  †Cladophlebis constricta
  †Cladophlebis heterophylla
  †Cladophlebis inclinata
  †Cladophlebis oblongifolia
  †Cladophlebis oerstedi
  †Cladophlebis virginiensis
  †Claosaurus
  †Claraia
  †Claraia aurita
  †Claraia clarai
  †Claraia mulleri
  †Claraia stachei
   †Clidastes
  †Clioscaphites
  †Clioscaphites vermiformis
  †Cobbanites
  †Coelostylina
  †Colpodontosaurus
  †Colpodontosaurus cracens
  †Componocancer
  †Componocancer roberti
  †Compsemys
  †Compsemys victa
  †Coniophis
  †Coniophis precedens
  †Coniopteris
  †Coniopteris bella – or unidentified comparable form
  †Coniopteris hymenophylloides
  †Coniopteris simplex
  †Continuoolithus
  †Continuoolithus canadensis
  †Contogenys – type locality for genus
  †Contogenys sloani – type locality for species
  †Coriops
  †Coriops amnicolus
  †Corviconodon
  †Corviconodon montanensis – type locality for species
   †Corythosaurus
  †Corythosaurus casuarius
  Crassatella
  †Cremnoceramus
  †Cremnoceramus deformis
  †Cretolamna
  †Cretolamna appendiculata
  †Cretorectolobus – type locality for genus
  †Cretorectolobus olsoni – type locality for species
  †Crocodilus
  †Crocodilus humilis
  †Cryptometoicoceras
  †Cryptometoicoceras mite
  Cucullaea
  †Cucullaea haguei
  †Cucullaea rockymontana
  †Cyathidites
  †Cyathidites minor
  †Cycadolepis
  †Cycadopites
  †Cycadopites fragilis
  †Cyclurus
  †Cyclurus fragosus
caption: Life restoration of the Late Cretaceous mosasaurid Clidastes
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