plesiosaur

listen to the pronunciation of plesiosaur
İngilizce - İngilizce
Any of several extinct marine reptiles, of the order Plesiosauria, from the Jurassic and Cretaceous periods

Look! cried Olson. Would you look at the giraffe comin' up out o' the bottom of the say? We looked in the direction he pointed and saw a long, glossy neck surmounted by a small head rising above the surface of the river. Presently the back of the creature was exposed, brown and glossy as the water dripped from it. It turned its eyes upon us, opened its lizard-like mouth, emitted a shrill hiss and came for us. The thing must have been sixteen or eighteen feet in length and closely resembled pictures I had seen of restored plesiosaurs of the lower Jurassic.

One of the Plesiosauria
extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
{i} extinct marine reptile of the Mesozoic era (having a small head, long flexible neck, four large paddlelike limbs and a short tail)
A plesiosaur
plesiosaurian