• Therizinosaurus

    Category: Dinosaur

    Therizinosaurus (Ther-ih-zine-oh-sore-us), Scythe Lizard, lived in the Late Cretaceous of Asia. Therizinosaurs were a family of theropods that changed from carnivores to herbivores. Therizinosaurus is the largest known maniraptor. Fossils are very incomplete and so Therizinosaurus is a composite reconstructed by using its smaller better known relatives like Beipiaosaurus.

    Therizinosaurus

    Therizinosaurus

    Genera and Species

    Classification: Theropoda, Tetanura, Ceratosasuria, Therizinosauridae

    Species: T. cheloniformis.

    Characteristics

    Therizinosaurus had long arms ending in three fingers tipped with huge saber shaped claws. An incomplete claw measured 2 ft around the outer curve. Close relative of raptors and other feathered dinosaurs and is reconstructed with feathers. The skull is small, with the tip of the lower jaw is down turned, on top of a long neck. The tail is short with a big belly and large four toed feet.

    Size

    Length 8 - 11 m (26 - 36 ft).

    Weight 1.1 - 6.2 tons.

    Behavior

    This is a high browsing theropod that could have used its long claws to reach branches like a giant sloth. Main predator would have been the giant Asian tyrannosaur Tarbosaurus.

    History of Discovery

    Discovered by Maleev in 1954. It is known from arms, claws and leg bones.

    Paleoenvironment

    Found in Mongolia well watered forests with seasonal rains.

    References

    1. Paul, G. (2010). The Princeton Field Guide to Dinosaurs (pp. 6197). Princeton, New Jersey: University Press Princeton
    2. Worth, G. (1999). The Dinosaur Encyclopaedia (pp. 3874). Scarborough, Western Australia: HyperWorks Reference Software.
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