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Massospondylus BW

Massospondylus is a genus of prosauropod dinosaur from the early Jurassic Period, ca. 200–183 million years ago. It was described by Sir Richard Owen in 1854 from remains found in South Africa, and is thus one of the first dinosaurs to have been named. Fossils have since been found in other parts of South Africa, as well as Lesotho and Zimbabwe. Further material from the United States Kayenta Formation, India, and Argentina has been assigned to this genus, but may not belong to Massospondylus. The type, and only universally recognized species, is M. carinatus, although six other species have been named during the past 150 years. Prosauropod systematics have undergone numerous revisions during the last several years, and many scientists disagree where exactly Massospondylus lies on the dinosaur evolutionary tree. Although Massospondylus was long depicted as quadrupedal, a 2007 study found it to be bipedal. It was probably a plant eater (herbivore), although it is speculated that the prosauropods may have been omnivorous. This animal, 4–6 meters (13–20 ft) long, had a long neck and tail, with a small head and slender body. (Read more...)


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Paul Sereno2

Paul Sereno is an American paleontologist who is the discoverer of several new dinosaur species on several continents. He has conducted excavations at sites as varied as Inner Mongolia, Argentina, Morocco and Niger. He is a professor at the University of Chicago and a National Geographic "explorer-in-residence." Sereno's most widely publicized discovery is that of a nearly complete specimen of Sarcosuchus imperator (popularly known as SuperCroc) at Gadoufaoua in the Tenere desert of Niger. Other major discoveries include Eoraptor - the oldest known dinosaur fossil, Jobaria, the first good skull of Carcharodontosaurus iguidensis, Afrovenator, Suchomimus and the African pterosaur. (Read more...)

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"I want to find a voracious, small-minded predator and name it after the IRS."
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Helicoprion whorl 13

Helicoprion, meaning ("Spiral Saw"), is an extinct genus of whorl-toothed shark that first arose in the oceans of the Late Carboniferous, approximately 280 million years ago, and survived the Permian-Triassic extinction event, and eventually went extinct during the Early Triassic, some 225 million years ago. Its fossils can be found in Russia and in the Western U.S. but no other part of the jaw or shark has ever been found. The type species, H. bessonovi, was discovered and described in the Ural Mountains of Russia in 1899 by Russian paleontologist Andrzej P. Karpinski. The type specimen is a holotype based upon a single tooth-whorl. The tooth-whorl has puzzled paleontologists for decades, as it was unknown as to where it fit into the jaw, until a modern reconstruction determined that the most feasible place was within the shark's mouth.

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