| ichthyosauria | <paleontology> An extinct order of marine reptiles, including Ichthyosaurus and allied forms; called also Ichthyopterygia. They have not been found later than the Cretaceous period. Origin: NL. See Ichthyosaurus. Source: Websters Dictionary (01 Mar 1998) |
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| ichthyosaurian | <paleontology> Of or pertaining to the Ichthyosauria. One of the Ichthyosauria. Source: Websters Dictionary (01 Mar 1998) |
| ichthyosauria | extinct marine reptiles: ichthyosaurs |
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