Thesaurus: ichthyosaurus

Related headwords

Definitions

1. n. An extinct genus of marine reptiles; -- so named from their short, biconcave vertebrae, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oolitic, and Cretaceous formations.
2. n. ichthyosaurs of the Jurassic
3. An extinct genus of marine reptiles; -- so named from their short, biconcave vertebræ, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oölitic, and Cretaceous formations.
4. An extinct genus of marine reptiles; -- so named from theirshort, biconcave vertebræ, resembling those of fishes. Severalspecies, varying in length from ten to thirty feet, are known fromthe Liassic, Oölitic, and Cretaceous formations.
5. n ichthyosaurs of the Jurassic