Dinosaurs That Start With P

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Explore a complete list of over 81 dinosaurs that start with the letter P.

Each dinosaur listed has a dedicated page with information on classification, diet, size, fossil evidence, geographic distribution, and maps of known fossil locations, where available. Pages may also include size comparison charts, fossil representations, and in-depth descriptions based on current scientific research.

The amount of information varies by species, depending on the completeness of fossil discoveries.

Plateosaurus

Plateosaurus

Diet: Herbivore.Size: Between‭ ‬5‭ ‬and‭ ‬10‭ ‬meters long,‭ ‬the genus seems to be highly variable in terms of adult size.Time Period: Norian to Rhaetian of the Triassic.

Platyceratops

Diet: Herbivore.Size: Roughly estimated to be about‭ ‬1‭ ‬meter long.Time Period: Santonian/Campanian of the Cretaceous.

Platypelta

Diet: Herbivore.Size: Roughly estimated at‭ ‬6‭ ‬meters long.Time Period: Campanian of the Cretaceous.‭

Plesiohadros

Diet: Herbivore.Size: Unavailable.Time Period: Campanian of the Cretaceous.

Pneumatoraptor

Diet: Carnivore.Size: Uncertain due to lack of remains,‭ ‬but estimated to be about‭ ‬70‭ ‬centimetres long.Time Period: Santonian of the Cretaceous.

Podokesaurus

Diet: Insectivore/Carnivore.Size: About‭ ‬90‭ ‬centimetres long.Time Period: Early Jurassic.

Poekilopleuron

Diet: Carnivore.Size: Estimated‭ ‬9‭ ‬meters long.Time Period: Bathonian of the Jurassic.
Polacanthus

Polacanthus

Diet: Herbivore.Size: 4‭ ‬meters long.Time Period: Barremian of the Cretaceous.

Portellsaurus

Diet: Herbivore.Size: Unknown due to lack of fossil remains.Time Period: Early Cretaceous.

Powellvenator

Diet: Carnivore.Size: Unavailable due to lack of fossil remains.Time Period: Late Triassic.

Pradhania

Diet: Herbivore.Size: Roughly about‭ ‬4‭ ‬meters long.Time Period: Sinemurian of the Jurassic.

Prenocephale

Diet: Herbivore.Size: About‭ ‬2.4‭ ‬meters long.Time Period: Campanian of the Cretaceous.

Prenoceratops

Diet: Herbivore.Size: Roughly about‭ ‬2.75‭ ‬meters long.Time Period: Campanian of the Cretaceous.

Probactrosaurus

Diet: Herbivore.Size: Estimated about‭ ‬5.5‭ ‬meters long.Time Period: Barremian of the Cretaceous.

Probrachylophosaurus

Diet: Herbivore.Size: Holotype Estimated at up to‭ ‬9‭ ‬meters long.‭ ‬Possibly slightly larger when fully grown.Time Period: Campanian of the Cretaceous.

Proceratosaurus

Diet: Carnivore.Size: 3‭ ‬meters long.Time Period: Bathonian of the Jurassic.

Procompsognathus

Diet: Insectivore/Carnivore.Size: Estimated about‭ ‬1‭ ‬meter long.Time Period: Norian of the Triassic.

Prosaurolophus

Diet: Herbivore.Size: Up to around‭ ‬9‭ ‬meters long.Time Period: Campanian of the Cretaceous.

Protarchaeopteryx

Diet: Carnivore.Size: Roughly estimated to have a reconstructed skeletal length of about‭ ‬80‭ ‬centimetres for the holotype individual.Time Period: Barremian of the Cretaceous.
Protathlitis

Protathlitis

Diet: Carnivore.‭Size: 10-12 metersTime Period: Barremian of the Early Cretaceous.
Protoceratops

Protoceratops

Diet: Herbivore.Size: Average about ‬1.8‭ ‬meters long up to 2 meters long for largest individuals.Time Period: Campanian of the Cretaceous.

Protognathosaurus

Diet: Herbivore.Size: Uncertain due to lack of post cranial remains.Time Period: Bathonian/Callovian of the Cretaceous.

Protohadros

Diet: Herbivore.Size: Holotype skull roughly about‭ ‬70‭ ‬centimetres long.‭ ‬Total body length roughly estimated at about‭ ‬7 ‬meters long.‭ ‬Special note‭*‬-Holotype individual is of a sub adult,‭ ‬fully grown adults would have been larger than this.Time Period: Cenomanian of the Cretaceous.

Protopteryx

Diet: Uncertain.Size: Body Length about‭ ‬10‭ ‬centimetres long.Time Period: Barremian of the Cretaceous.
Psittacosaurus

Psittacosaurus

Diet: Herbivore.Size: Up to about 2 meters long.Time Period: Barremian through to the Albian of the Cretaceous.