page_title: List of the Cenozoic life of Colorado
section_title: X
hierarchical_section_title: List of the Cenozoic life of Colorado / X
caption_attribution_description: English: Xantholinus sp.
context_page_description: This list of the Cenozoic life of Colorado contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Colorado and are between 66 million and 10,000 years of age.
context_section_description: †Xantholinus
  †Xantholinus tenebrarius – type locality for species
  †Xenacodon
  †Xenacodon mutilatus – type locality for species
  †Xenicohippus
  †Xenicohippus craspedotum
  †Xenicohippus grangeri
  †Xenicohippus osborni
  †Xenoberotha – type locality for genus
  †Xenoberotha angustialata – type locality for species
  †Xestobium
  †Xestobium alutaceum – type locality for species
  Xyela
  †Xyela florissantensis – type locality for species
  Xyleborinus
  †Xyleborinus saxeseni
  †Xyleborites – type locality for genus
  †Xyleborites longipennis – type locality for species
  †Xylobiops
  †Xylobiops lacustre – type locality for species
   †Xylocopa
  †Xylocopa gabrielae – type locality for species
  †Xylomya
  †Xylomya inornata – type locality for species
  †Xylomyia
  †Xylomyia moratula – type locality for species
  †Xylonomus
  †Xylonomus sejugatus – type locality for species
  †Xyronomys
  †Xyronomys robinsoni – type locality for species
caption: A living Xantholinus rove beetle
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