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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.
Barsbold proposed the Deinocheirosauria and included Therizinosaurus as a member. [5] In another paper during the same year, Barsbold referred a shoulder and forearm found in the same strata as the Therizinosaurus type specimen to that genus because of the resemblance between the specimens claws. He observed that the anatomy of the arm and ...
The discovery of a newly identified species — the oldest saber-toothed animal found and an ancient cousin to mammals — fills a longstanding gap in the fossil record.
Talarn Formation, Spain A jinfengopterygine troodontid, the first known from Europe. †Therizinosaurus †Therizinosaurus cheloniformis; 75-66 Ma, Campanian to Maastrichtian Nemegt Formation, Omnogovi Province, Mongolia A therizinosaurid, one of the last and largest therizinosaurs. †Tochisaurus †Tochisaurus nemegtensis; 69 Ma
Four schools of thought were influential in ancient Greece: animism, vitalism, mechanism, and anthropocentrism. The philosopher and mathematician Pythagoras (c. 580–c. 500 BCE) was the central figure within animism.
Prospective new pet owners are usually greeted by energetic young puppies with eagerly wagging tails and expectant lolling tongues in pet stores. Although almost every animal is presented as having...
A new critter is creeping into the United States' waters. The invasive Australian redclaw crayfish was recently spotted in Southern Texas, roughly 8,000 miles away from its home. The freshwater ...