The Early Cretaceous Period was the early part, of the larger Cretaceous time period. It contained many strange, unique, and interesting, dinosaus, including Acrocanthosaurus, Sauroposeidon, Deinonychus, and, Utahraptor. The Early Cretaceous was preceded by the Late Jurassic Period, and it was followed, by the Late Cretaceous Period. It began about 144 million years, ago, and it ended about 99.8 million years, ago.

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