page_title: List of the Mesozoic life of Wyoming
section_title: P
hierarchical_section_title: List of the Mesozoic life of Wyoming / P
caption_attribution_description: English: Crop of file in filename
context_page_description: This list of the Mesozoic 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 252.17 and 66 million years of age.
context_section_description: †Pachycephalosaurus
  †Pachycephalosaurus wyomingensis – type locality for species
  †Pachyrhizodus
  †Pachyteuthis
  †Pachyteuthis densus
  †Palaeoaster
  †Palaeoaster inquirenda
  †Palaeobatrachus
  †Palaeobatrachus occidentalis – type locality for species
  †Palaeocypraea
  †Palaeocypraea squyeri – type locality for species
  †Palaeosaniwa – type locality for genus
  †Palaeosaniwa canadensis – type locality for species
  †Paleoaster
  †Paleoaster inquirenda
  †Paleopsephurus
  †Paleopsephurus wilsoni
  †Paleorhinus
  †Paleorhinus parvus – type locality for species
  †Paliurus
  †Paliurus minimus
  †Paliurus zizyphoides – tentative report
  †Pantosaurus – type locality for genus
  †Pantosaurus striatus – type locality for species
  †Parachondroceras
  †Parachondroceras andrewsi
  †Parachondroceras filicostatum
  †Paracimexomys
  †Paracimexomys priscus
  †Paracredneria
  †Paracredneria cretacea – type locality for species
  †Paraderma – type locality for genus
  †Paraderma bogerti – type locality for species
  †Paradiscoglossus – type locality for genus
  †Paradiscoglossus americanus – type locality for species
  †Paralbula
  †Paralbula casei
  †Paramacellodus
  †Paramacellodus keebleri
  †Paranymphaea
  †Paranymphaea hastata
  †Parasaniwa – type locality for genus
  †Parasaniwa wyomingensis – type locality for species
  †Parastomechinus
  †Parastomechinus brightoni
   †Parasuchus
  †Parasuchus bransoni – type locality for species
  †Paressonodon
  †Paressonodon nelsoni
  †Pariguana – type locality for genus
  †Pariguana lancensis – type locality for species
  †Parikimys
  †Parikimys carpenteri
  †Parmicorbula
  †Parmicorbula bisulcata
  †Paronychodon
  †Paronychodon lacustris – type locality for species
  †Parvodus
  †Paurodon – type locality for genus
  †Paurodon valens – type locality for species
  †Pecopteris
  †Pecopteris borealis
  †Pecopteris Geyleriana
  Pecten
  †Pecten nebrascensis
   †Pectinodon – type locality for genus
  †Pectinodon bakkeri – type locality for species
  †Pediomys
  †Pediomys elegans – type locality for species
  †Pentacrinus
  †Permophorus
  †Permophorus triassicus – type locality for species
  Persea – report made of unidentified related form or using admittedly obsolete nomenclature
  †Persea hayana
  †Petalolepis – tentative report
  †Petalolepis fibrillatus
  †Phlycticrioceras
  †Phlycticrioceras trinodosus
  †Phoenicites – or unidentified comparable form
   Pholadomya
  †Pholadomya inaequiplicata
  †Pholadomya kingi
  †Phragmites
  †Phragmites falcata
  †Phyllites
  †Phyllites crassipes
  †Phyllites cretaceous
  †Phyllites dentata
  †Phyllites ficifolius
  †Phyllites grandifolius-cretaceous
  Phyllodus
  †Phyllodus toliapicus
   Physa – or unidentified comparable form
  †Piceoerpeton
  †Piceoerpeton naylori
  Pinna
  †Pinna kingi
  Pinus
  †Pinus susquaensis
  Pistacia
  †Pistacia eriensis
  †Pistia
  †Pistia corrugata
   †Placenticeras
  †Placenticeras intercalare
  †Placenticeras meeki
  †Placenticeras pseudoplacenta
  †Plagiostoma
  †Plagiostoma occidentalis
  Planorbis
  †Plastomenus
  †Platacodon – type locality for genus
  †Platacodon nanus – type locality for species
  †Platanites
  †Platanites marginata
  †Platanophyllum
  †Platanophyllum montanum
  †Platanophyllum platanoides
  Platanus
  †Platanus primaeva
   †Platecarpus
  †Platecarpus brachycephalus
  †Platecarpus tympaniticus
  †Platymya
  †Platymya rockymontana
  †Platypterygius
  †Platypterygius americanus – type locality for species
  †Plesiacanthoceras
  †Plesiacanthoceras bellsanum – or unidentified comparable form
  †Plesiacanthoceras wyomingense
  †Plesiobaena
  †Plesiobaena antiqua
   †Plesiopleurodon – type locality for genus
  †Plesiopleurodon wellesi – type locality for species
  †Plesiosaurus
  †Plesiosaurus shirleyensis – type locality for species
  †Pleuromya
  †Pleuromya haydeniana – type locality for species
  †Pleuromya subcompressa
  †Plicatolamna
  †Plicatolamna arcuata
  Plicatula
  Polinices
  †Polinices concinna – or unidentified related form
  †Polyacrodus
  †Polyacrodus parvidens – or unidentified comparable form
  †Polycotylus
   †Poposaurus – type locality for genus
  †Poposaurus gracilis – type locality for species
  Populus
  †Populus aspens
  †Populus aspensis – type locality for species
  †Porosoma
  †Porosoma reesidei – type locality for species
  †Portheus
  †Postligata
  †Postligata crenata
  †Pota
caption: Fossilized mandible of the Late Cretaceous-Paleocene mammal Protungulatum
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