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Qu'est-ce (qui) est Mosasauria - définition

SUPERFAMILY OF REPTILES

Mosasaurs; Mosasauridae; Mosasauroid; Mosasauroidea; Mososaur; Mosasaurids; Mosasaur integument; Russelosaurina; Russellosaurina; Yaguarasaurine; Mosasaurid; Marine lizard; Mosasauria

Mosasauria

·noun ·pl An order of large, extinct, marine reptiles, found in the Cretaceous rocks, especially in America. They were serpentlike in form and in having loosely articulated and dilatable jaws, with large recurved tteth, but they had paddlelike feet. Some of them were over fifty feet long. They are, essentially, fossil sea serpents with paddles. Called also Pythonomarpha, and Mosasauria.

Mosasaur

·noun ·Alt. of Mosasaurian.

mosasaur

['m??z?s?:]

¦ noun a large fossil marine reptile with paddle-like limbs and a long flattened tail.

Origin

C19: from mod. L. Mosasaurus, from L. Mosa, the river Meuse (near which it was first discovered) + Gk sauros 'lizard'.

Wikipédia

Mosasaur

Mosasaurs (from Latin Mosa meaning the 'Meuse', and Greek σαύρος sauros meaning 'lizard') comprise a group of extinct, large marine reptiles from the Late Cretaceous. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764. They belong to the order Squamata, which includes lizards and snakes.

Mosasaurs probably evolved from an extinct group of aquatic lizards known as aigialosaurs in the Earliest Late Cretaceous with 42 described genera. During the last 20 million years of the Cretaceous period (Turonian–Maastrichtian ages), with the extinction of the ichthyosaurs and pliosaurs, mosasaurs became the dominant marine predators. They themselves became extinct as a result of the K-Pg event at the end of the Cretaceous period, about 66 million years ago.

https://en.wikipedia.org/wiki/Mosasaur