ZoomDinosaurs.com Dinosaur and Paleontology Dictionary

TOP PREDATOR A top predator is an animal at the top of the food chain, like the jaguar or bald eagle. Top predators have little or no natural enemies.

TORNIERIA Tornieria is an invalid name for Barosaurus, a diplodocid sauropod (a long-necked, long-tailed, small-headed, short-legged giant). It was an herbivore, a plant-eater. It was huge, perhaps over 60 feet (20 m) long, and was slow-moving. Its primary defense against predators was its size. Barosaurus lived during the late Jurassic period, about 156 to 145 million years ago. Its fossils have been found in western North America and East Africa.

TOROSAURUS (pronounced TOR-oh-SAWR-us) Torosaurus (meaning "pierced lizard") was a very large 21-25 feet (6.2-7.6 m) long ceratopsian. It had the second-largest skull of any animal, 8.5 feet (2.8 m) long (a recently-found Pentaceratops skull is larger). It had a bony head frill, a beak, a short tail, a heavy body, a short nose horn and 2 large brow horns. It lived during the late Cretaceous period, about 70-65 million years ago in what is now western North America. Torosaurus was discovered by John B. Hatcher and named in 1891 by paleontologist Othniel C. Marsh.

TORVOSAURUS (pronounced TOR-voh-SAWR-us) Torvosaurus (meaning "savage lizard") was a very large theropod dinosaur. This bipedal meat-eater was up to 40 feet (12 m) long and had extremely short arms. It lived during the late Jurassic period, about 156-145 million years ago in what is Colorado, USA, North America. The type species is T. tanneri. Torvosaurus was named by paleontologists Galton and Jensen in 1979.

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