page_title: List of the Mesozoic life of Colorado
section_title: P
hierarchical_section_title: List of the Mesozoic life of Colorado / P
caption_attribution_description: English: Crop of file in filename
context_page_description: This list of the Mesozoic 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 252.17 and 66 million years of age.
context_section_description: †Pachycephalosaurus
  †Pachyrhizodus
  †Pachyrhizodus minimus
  †Palaeobalistum
  †Palaeopteryx – type locality for genus
  †Paleonelumbo
  †Paleonelumbo macroloba
  †Parabrontopodus – type locality for genus
  †Parabrontopodus mcintoshi – type locality for species
  †Parallelodon
  †Paramacellodus
  †Parapleurites
  †Parapleurites morrisonensis – type locality for species
  †Paressonodon – type locality for genus
  †Paressonodon nelsoni – type locality for species
  †Parikimys – type locality for genus
  †Parikimys carpenteri – type locality for species
  †Parviraptor
   †Pentaceratops
  †Pentaceratops sternbergii
  †Pentasauropus
  †Petropteron – type locality for genus
  †Petropteron mirandum – type locality for species
  †Phelopteria
  †Phelopteria linguaeformis
  †Phelopteria ruppii – type locality for species
  †Phlycticrioceras
  †Phlycticrioceras trinodosus
  †Pinna
  †Placenticeras
  †Placenticeras meeki
  †Placenticeras placentum
  †Placenticeras syrtale
  †Plastomenus – tentative report
  †Plastomenus insignis – type locality for species
  †Plastomenus punctulatus – type locality for species
  †Platanites
  †Platanites marginata
   †Platyceramus
  †Platyceramus ahsenensis
  †Platyceramus cycloides
  †Platyceramus mantelli - or unidentified loosely related form
  †Platyceramus platinus
  †Platyognathus
  †Plesiobaena
  †Plesiobaena antiqua – or unidentified comparable form
  †Polyonax – type locality for genus
  †Polyonax mortuarius – type locality for species
  †Preprismatoolithus
  †Preprismatoolithus coloradensis
  †Priacodon
  †Priacodon fruitaensis – type locality for species
  †Prionocyclus
  †Probaena
  †Probaena sculpta – type locality for species
   †Prognathodon
  †Prognathodon overtoni
  †Prognathodon stadtmani – type locality for species
  Propeamussium
  †Propeamussium simplicus
  †Protalphadon
  †Protexanites
  †Protexanites shoshonensis
  †Protocardia
  †Protocardia barneyi – type locality for species
  †Protocupressinoxylon
  †Protocupressinoxylon medlynii – type locality for species
   †Protosphyraena
  Prunus
  †Prunus corrugis
  †Pseudaspidoceras
  †Pseudaspidoceras collignoni
  †Pseudobaculites
  †Pseudocalycoceras
  †Pseudocalycoceras angolaense
  †Pseudocalycoceras dentonense
  †Pseudoisurus
  †Pseudoisurus tomosus – or unidentified comparable form
  †Pseudoperna
  †Pseudoperna bentonensis
  †Pseudoperna congesta
  †Pseudoperna inflatum – type locality for species
  †Pseudotetrasauropus – tentative report
  †Pteraichnus
   †Ptychodus
  †Ptychodus anonymus
  †Ptychodus decurrens
  †Ptychodus occidentalis
  †Ptychodus whipplei
  †Puebloites
  †Puebloites spiralis
  Pycnodonte
  †Pycnodonte newberryi
caption: Fossilized shell of the Cretaceous marine bivalve Platyceramus
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