page_title: List of the Paleozoic life of Utah
section_title: X
hierarchical_section_title: List of the Paleozoic life of Utah / X
caption_attribution_description: English: Cropped image of taxon in file name
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: †Xenacanthus – or unidentified related form
  †Xenacanthus texensis
  †Xenostegium
  †Xenostegium acuminferentis – or unidentified comparable form
  †Xenostegium franklinense
  †Xestotrema
  †Xestotrema pulchrum
  †Xystocrania – tentative report
  †Xystocrania perforator
caption: Restoration of the Late Devonian–Triassic freshwater shark Xenacanthus
exif: {}