page_title: List of the Paleozoic life of Wyoming
section_title: O
hierarchical_section_title: List of the Paleozoic life of Wyoming / O
caption_attribution_description: An Olenoides superbus trilobite, Order Corynexochida, Family Dorypygidae, collected from the Upper Marjum Formation, House Range, Millard County, Utah, USA, lived during the late Middle Cambrian, exhibited in the Houston Museum of Natural Science, Houston, Texas, USA. Photography was permitted in the museum without restriction.
context_page_description: This list of the Paleozoic life of Wyoming contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Wyoming and are between 541 and 252.17 million years of age.
context_section_description: †Obliquipecten
  †Ocnerorthis
  †Ocnerorthis cooperi
  †Oepikina
  †Oepikina pergibbosa – or unidentified comparable form
  †Oistodus
  †Oistodus curvatus
   †Olenoides
  †Olenoides incertus – or unidentified comparable form
  †Onchus
  †Onchus penetrans
  †Onchus peracutus
  †Orbiculoidea
  †Orbiculoidea missouriensis
  †Orbiculoidea utahensis
  †Orbiculoidea wyomingensis
  †Oreaspis
  †Oreaspis ampla
  †Oreaspis dunklei
  †Oreaspis williamsi
  †Oriocrassatella
  †Oriocrassatella elongata – type locality for species
  †Orthonema
  †Orthotetes
  †Orthotetes kaskaskiensis
  †Orthothetina
  †Orthothetina amsdenensis
  †Otusia
  †Ovatia
  †Ovatia croneisi
  †Ovatia muralis
  †Ozarkodina
caption: Fossil of the Cambrian trilobite Olenoides
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