Your request was dynosaur which is probably a typo from dinosaur.
dynosaur -
Traditional English :: dinosaur
dynosaur - n. 1 an extinct reptile of the Mesozoic era, often of enormous size. 2 a large unwieldy system or organization, esp. one not adapting to new conditions.
dinosaurian adj. & n. [mod.L dinosaurus f. Gk deinos terrible + sauros lizard]