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Monster Jaw - Giant Crocodiles of Australia

Crocodiles in the not too distant past were very very big!
Crocodiles have huge conical teeth.
When a tooth breaks off there is a replacement tooth filling the conical hollow just beneath.

crocodile teeth

Crocodiles and alligators (living Crocodylia) are the largest living reptiles, the only truly large reptiles apart from the Komodo Dragon to have survived to the present.
Most crocodiles and alligators are restricted to tropical or subtropical regions today. Crocodiles lay up to 60 eggs in a nest near water. Most crocodiles are aquatic, although they spending at least some time on land, to lay eggs or perhaps to feed occasionally.

Crocodile jaws are solid and massive.
They use them like swords and clubs when fighting other crocodiles for territory.

massive crocodiile jaw

Crocodiles are an ancient group of archosaurs, first appearing in the fossil record in the Late Triassic over 200 million years ago.

Sensory pits on the outer surface of the crocodile's jaw permit it to sense the vibrations and hence the movement of its prey all without moving.

tooth holes

sensory pits

These fossils were collected on one of our EXPEDITIONS and GEOLOGICAL / EVOLUTIONARY TIME