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Dinosaur classification began in 1842 when Sir Richard Owen placed Iguanodon, Megalosaurus, and Hylaeosaurus in "a distinct tribe or suborder of Saurian Reptiles, for which I would propose the name of Dinosauria." [1] In 1887 and 1888 Harry Seeley divided dinosaurs into the two orders Saurischia and Ornithischia, based on their hip structure. [2]
While the dinosaurs' modern-day surviving avian lineage (birds) are generally small due to the constraints of flight, many prehistoric dinosaurs (non-avian and avian) were large-bodied—the largest sauropod dinosaurs are estimated to have reached lengths of 39.7 meters (130 feet) and heights of 18 m (59 ft) and were the largest land animals of ...
An Oxford University professor once described Owen as "a damned liar. He lied for God and for malice". [25] Gideon Mantell claimed it was "a pity a man so talented should be so dastardly and envious". Richard Broke Freeman described him as "the most distinguished vertebrate zoologist and palaeontologist ... but a most deceitful and odious man ...
Separately, game theory has played a role in online algorithms; in particular, the k-server problem, which has in the past been referred to as games with moving costs and request-answer games. [125] Yao's principle is a game-theoretic technique for proving lower bounds on the computational complexity of randomized algorithms , especially online ...
The Pocket Oxford Dictionary of Current English was originally conceived by F. G. Fowler and H. W. Fowler to be compressed, compact, and concise. Its primary source is the Oxford English Dictionary, and it is nominally an abridgement of the Concise Oxford Dictionary. It was first published in 1924. [86]
Determined game (or Strictly determined game) In game theory, a strictly determined game is a two-player zero-sum game that has at least one Nash equilibrium with both players using pure strategies. [2] [3] Dictator A player is a strong dictator if he can guarantee any outcome regardless of the other players.
Ornithoscelida (/ ˌ ɔː r n ɪ θ ə ˈ s ɛ l ɪ d ə / [1]) is a proposed clade that includes various major groupings of dinosaurs.An order Ornithoscelida was originally proposed by Thomas Henry Huxley but later abandoned in favor of Harry Govier Seeley's division of Dinosauria into Saurischia and Ornithischia.
The genus of dinosaurs lived in what is now mid-western North America, at the end of the Jurassic period. It is one of the more common dinosaur fossils found in the middle to upper Morrison Formation, between about 154 and 152 million years ago, during the late Kimmeridgian Age, [6] although it may have made it into the Tithonian. [7]