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Therizinosaurus (/ ˌ θ ɛ r ə ˌ z ɪ n oʊ ˈ s ɔːr ə s / ⓘ; meaning 'scythe lizard') is a genus of very large therizinosaurid dinosaurs that lived in Asia during the Late Cretaceous period in what is now the Nemegt Formation around 70 million years ago. It contains a single species, Therizinosaurus cheloniformis.
Forelimbs of Therizinosaurus, specimen IGM 100/15 displayed at Nagoya City Science Museum. Therizinosaurs were long considered an enigmatic group, whose mosaic of features resembling those of various different dinosaur groups, and scarcity of their fossils, led to controversy over their evolutionary relationships for decades after their initial discovery.
Therizinosaurs, also known as segnosaurs, were theropod dinosaurs and members of the clade Therizinosauria. For many years after their discovery, the exact placing of this group within dinosaurs was somewhat speculative.
The humerus (upper arm) was exceptionally robust and flexible with wide lower ends as seen on the humeri of the therizinosaurids Nothronychus and Therizinosaurus. Not only that but the biceps muscle was prominently well-developed in Therizinosaurus. [2] [12] In Segnosaurus, the deltopectoral crest (deltoid muscle attachment) was strongly built. [3]
Check out Therizinosaurus. That's who the filmmakers say was the basis of the Indominous rex. Those claws are so long it looks like Edward Scissorhands. 'Theri,' as we'll call him, lived in the ...
The choice to include a presenter was made to more easily allow audiences to see the scale of the creatures shown in the episodes. Both episodes have Marven on a purposeful journey; in The Giant Claw, Marven searches for the long-clawed Therizinosaurus and in Land of Giants he searches for the enormous Argentinosaurus and Giganotosaurus.
Senter and James suggested the ecological niches for Therizinosaurus and Deinocheirus were characterized by high-browsing life styles. Therizinosaurus was found to be among the tallest dinosaurs in the Nemegt Formation. They also calculated that an average Therizinosaurus may have had 3 m (9.8 ft) long hindlimbs. [54] 2011
Life restoration. The Paralitherizinosaurus holotype specimen, NMV-52, was discovered in September 2000 in layers of the Osoushinai Formation in Nakagawa, Hokkaido, Japan, which dates to the early Campanian age of the late Cretaceous period.