( n. pl. )
An extinct order of marine reptiles, including Ichthyosaurus and allied forms; -- called also Ichthyopterygia. They have not been found later than the Cretaceous period.
( n. pl. )
An extinct order of marine reptiles, including Ichthyosaurus and allied forms; -- called also Ichthyopterygia. They have not been found later than the Cretaceous period.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012