Dinosaurs A to Z

Dinosaurs beginning with the letter P

On the following pages we have assembled an ever growing library of dinosaurs for your reference.  (Current article count is: 367)

If you encounter any errors or typos or if you would like to request that a specific type of Dinosaur be added to the list, please take a moment to EMAIL US and let us know.

Name Era Description
Pachycephalosaurus
Pachyrhinosaurus
Pachysauriscus Probable junior synonym of Plateosaurus
Pachysaurops Probable junior synonym of Plateosaurus
Pachysaurus Preoccupied name for what is now known as Pachysauriscus; probable junior synonym of Plateosaurus
Pachyspondylus Probable junior synonym of Massospondylus
Pakisaurus nomen nudum
Palaeoctonus Actually a phytosaur
Palaeocursornis Possibly a bird
Palaeolimnornis nomen nudum of Palaeocursornis, possibly some sort of bird
Palaeopteryx Possibly some sort of bird
Palaeosauriscus Junior synonym of Paleosaurus
Palaeosaurus Preoccupied name for what is now known as Paleosaurus,
Discovered by Riley & Stutchbury in 1836
Palaeosaurus Preoccupied name for what is now known as Sphenosaurus, a non-dinosaurian procolophonid, which was Discovered by Fitzinger in 1840
Palaeoscincus
Paleosaurus Actually a non-dinosaurian archosaur
Paluxysaurus
Panoplosaurus
Pantydraco
Paraiguanodon nomen nudum of Bactrosaurus
Paralititan
Paranthodon
Pararhabdodon
Parasaurolophus
Pareiasaurus Actually a pareiasaur
Parhabdodon nomen nudum for a common misspelling of Pararhabdodon
Parksosaurus
Paronychodon
Parrosaurus Possible junior synonym of Hypsibema
Parvicursor Possibly a bird
Patagonykus Possibly a bird
Patagosaurus
Patricosaurus Actually a chimera of various non-dinosaurian reptiles
Pawpawsaurus
Pectinodon Junior synonym of Troodon
Pedopenna
Peishansaurus
Pekinosaurus Actually a pseudosuchian; possibly a junior synonym of Revueltosaurus
Pelecanimimus
Pellegrinisaurus
Pelorosaurus
Peltosaurus Preoccupied name for what is now known as Sauropelta
Penelopognathus
Pentaceratops
Phaedrolosaurus
Phuwiangosaurus
Phyllodon
Piatnitzkysaurus
Picrodon Junior synonym of Avalonianus
Pinacosaurus
Pisanosaurus
Piveteausaurus
Planicoxa
Plateosauravus
Plateosaurus
Platyceratops
Pleurocoelus Possibly a misidentified Astrodon
Pleuropeltus Junior synonym of Struthiosaurus
Pneumatoarthrus Actually a turtle
Podokesaurus
Poekilopleuron
Polacanthoides Junior synonym of Hylaeosaurus
Polacanthus
Polyodontosaurus Junior synonym of Troodon
Polyonax
Ponerosteus
Poposaurus Actually a non-dinosaurian archosaur
Postosuchus Actually a rauisuchian
Prenocephale
Prenoceratops
Priconodon
Priodontognathus
Probactrosaurus
Proceratops Junior synonym (unneeded replacement name) of Ceratops
Proceratosaurus
Procerosaurus Actually a prolacertiform archosauromorph, which was discovered by von Huene in 1902
Procerosaurus Preoccupied name for what is now known as Ponerosteus, which was discovered by Fritsch in 1905
Procheneosaurus Junior synonym of Lambeosaurus
Procompsognathus
Prodeinodon
Prodhania
Proiguanodon nomen nudum of Iguanodon
Prosaurolophus
Protarchaeopteryx
Protecovasaurus Actually a non-dinosaurian archosauriform
Protiguanodon Junior synonym of Psittacosaurus
Protoavis May possibly be a bird of some kind
Protoceratops
Protognathosaurus
Protognathus Preoccupied name for what is now known as Protognathosaurus
Protohadros
Protorosaurus Actually a non-dinosaurian reptile,
Discovered by von Meye in 1830
Protorosaurus Preoccupied name for what is now known as Chasmosaurus,
Discovered by Lambe in 1914
Protrachodon nomen nudum of Orthomerus
Proyandusaurus nomen nudum of Hexinlusaurus
Pseudolagosuchus Actually a non-dinosaurian dinosauromorph
Psittacosaurus
Pteranodon
Pterodactylus
Pteropelyx
Pterospondylus
Puertasaurus
Pukyongosaurus
Pycnonemosaurus
Pyroraptor


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