Dinosaur Glossary

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Pachycephalosauria Infra-order of the sub-order Marginocephalia.

Palaeontologist Scientist who studies olden life on Earth.

Paleobotany the branch of botany that studies the plants that existed in former geological periods, mainly by studying fossils.

Paleozoic Era it means ancient life ended with the largest mass extinction in geological history and was followed by the Mesozoic period, the time of the dinosaurs.

Panthalassa the super-ocean that existed on Earth throughout the time of the super-continent Pangaea.

Permian Period it is The Age of Amphibians (280 to 248 million years ago), is when Pangaea was produced. It ended with the largest mass extinction and was followed by the Mesozoic era.

Petrification it is the process in which an organic tissue turns to stone.

Plesiosaurs it is not dinosaurs and it is Flippered, sea-dwelling reptiles from the Mesozoic period.

Prehistoric The time before people began copy history in writing. This time changes from culture to culture.

Preparator a person who carefully removes a fossil from its rock mold.

Prey is an animal when another animal hunts and kills it for food.

Pterosaurs it means winged lizards, flying prehistoric reptiles that were closely associated to dinosaurs.

Pangaea Super-continent in the Triassic.

Plateosaurus Dinosaur of the infra-order Prosauropoda (Triassic).

Prosauropoda Infra-order of the sauropodomorpha.