- 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. Source: opted
- 2. n. ichthyosaurs of the Jurassic Source: wordnet
- 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. Source: webster
- 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. Source: adambom
- 5. n ichthyosaurs of the Jurassic Source: ecdict
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ichthyosaurus
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biconcavecretaceousextinctfeetfishesformationsgenusknownlengthliassicmarinenamedreptilesresemblingthirtyvaryingichthyosaursjurassicseveralshortspeciestheirooliticvertebrae
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