What is Therizinosaurus?
{{Taxobox | name = ''Therizinosaurus'' | status = fossil | image = Therizinosaurus Restoration.png | image_width = 230px | fossil_range = [[Upper Cretaceous]] | regnum = [[Animal]]ia | phylum = [[Chordate|Chordata]] | classis = [[Sauropsid]]a | superordo = [[Dinosauria]] | ordo = [[Saurischia]] | subordo = [[Theropoda]] | infraordo = [[Coelurosauria]] | familia = [[Therizinosauridae]] | genus = '''''Therizinosaurus''''' | species = '''''T. cheloniformis''''' | binomial = ''Therizinosaurus cheloniformis'' | binomial_authority = [[Evgeny Maleev|Maleev]], 1954 }} '''Therizinosaurus''' was a huge [[herbivorous]] [[theropod]] [[dinosaur]] from the end of the [[Cretaceous]] period. New, well-preserved finds such as ''[[Alxasaurus]]'' in 1993 and ''[[Beipiaosaurus]]'' in 1996 provided details about the bird-like [[pelvis]], [[feet]] and [[skull]]s of primitive members. This helped confirm they belonged to the same group of theropod dinosaurs as ''Therizinosaurus'' and that therizinosaurs were, more specifically, advanced, herbivorous maniraptoran theropods. Their [[fossil]]s were first found in the late 1940s in [[Asia]]. They were named in 1954 after more [[bone]]s were found. It was a thought to be a [[carnivore]] and [[herbivore]]; it had very long claws - they were about {{convert|90|cm|ft}} long. ==Paleobiology== The feeding habits of ''Therizinosaurus'' are unknown, since no skull material has ever been found that could indicate its diet. However, like other therizinosaurs, it was probably primarily [[Herbivore|herbivorous]].<ref name=svarney2003>Svarney T.E. and Svarney P.B. 2003. ''The handy Dinosaur answer book''. 1st ed. Canton, MI: Visible Ink Press.</ref> There are multiple possible functions that could have been served by the claws of ''Therizinosaurus'', such as defense against predators (e.g. the contemporary ''[[Tarbosaurus]]'') and in intraspecific fighting, such as fighting for territory or for mating, or to pull leafy tree branches towards its mouth. The claws may have served all these function