Ichthyosaurus n. (pl. ichthyosauri) (Paleon.) 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, Oölitic, and Cretaceous formations.
... and museums for science, and listen to preludes of the "music of the future;" and we shudder at the mention of vice, as at the remembrance of the tortures of Regulus, but will the Cain type ever become extinct, like the dodo, or the ichthyosaurus? When will the laws of heredity, and the by-laws of agnation result in an altruism, where human bloodshed ... — At the Mercy of Tiberius • August Evans Wilson
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