Labels:text | screenshot OCR: Jurassic, noun. (200-138 million years ago) The middle geological period of the Mesozoic era, after the Triassic and before the Cretaceous, when dinosaurs dominated the earth and birds first appeared. matrix, noun. The layer of rock that surrounds and encases fossils. Mesozoic era, noun. The geologic era known as the "Age of the Dinosaurs" which spanned a period of time from 240 to 65 million years ago. The Mesozoic Era is broken down into three time periods known as the Triassic, Jurassic, and the Cretaceous. ossified tendon, noun. Ossify means bony. An ossified tendon is one that has become bony, or hardened, over time. paleontologist, noun. A scientist who studies the evidence of prehistoric life on earth. prehistoric, adjective. Of or belonging to times before histories were written. preparator, noun. A person who prepares paleontological finds for exhibit or scientific study. quadruped, noun. An animal that has four feet.
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