page_title: List of the Mesozoic life of Montana
section_title: E
hierarchical_section_title: List of the Mesozoic life of Montana / E
caption_attribution_description: Equisetum telmateia (Equisetopsida) at Cambridge Botanic Garden
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: †Echinatisporis
  †Ectocentrocristus
  †Ectocentrocristus foxi – type locality for species
  †Ectoconodon
  †Ectoconodon montanensis – type locality for species
  †Edgarosaurus
  †Edgarosaurus muddi
  †Edmontonia
  †Edmontonia longiceps
  †Edmontonia rugosidens – type locality for species
  †Edmontosaurus
   †Edmontosaurus annectens
  †Einiosaurus – type locality for genus
  †Einiosaurus procurvicornis – type locality for species
  †Elasmodus
  †Elasmodus greenoughi – or unidentified comparable form
  †Emarginachelys – type locality for genus
  †Emarginachelys cretacea – type locality for species
  †Entolioides
  †Entolioides utahensis
  †Eodelphis
  †Eopelobates – or unidentified comparable form
   †Equisetum
  †Equisetum cascadensis – type locality for species
  †Equisetum laterale
  †Equisetum montanensis
  †Erdtmanipollis
  †Erdtmanipollis procumbentiformis
  †Essonodon – type locality for genus
  †Essonodon browni – type locality for species
  †Eubaena
  †Eubaena cephalica
  †Eucrossorhinus
  †Eucrossorhinus microcuspidatus – type locality for species
  †Eumorphotis
  †Eumorphotis amplicostata – type locality for species
  †Eumorphotis ericius – or unidentified comparable form
  †Eumorphotis multiformis
  †Euomphaloceras
  †Euomphaloceras septemseriatum
   †Euoplocephalus
  †Euoplocephalus tutus
  †Eutrephoceras
  †Eutrephoceras montanensis – type locality for species
  †Exiteloceras
  †Exiteloceras jenneyi
  †Exogyra
  †Exogyra columbella
  †Exostinus
  †Exostinus lancensis
caption: A living Equisetum, or horsetail
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