| This species is distinguished by the cutting-edges on its flattened tooth crowns, which are otherwise unknown among ichthyosaurs. |
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| The earliest ichthyosaurs had long, flexible bodies and probably swam by undulating, like living eels. |
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| Read about the Saurian Expedition of 1905 on which UCMP benefactress Annie Alexander collected many ichthyosaurs. |
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| Belemnite hooks are commonly found in the fossilized stomachs of marine reptiles that preyed upon them, such as ichthyosaurs. |
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| More distantly related to true dinosaurs were the marine plesiosaurs and ichthyosaurs. |
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| Marine vertebrates included the large dolphin-like ichthyosaurs and the long-necked plesiosaurs, marine crocodiles, turtles, and other reptiles. |
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| Despite their fishlike exteriors, ichthyosaurs had to surface to breathe air and they gave birth to live young. |
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| There were already air breathing reptiles in the sea in the form of plesiosaurs, nothosaurs, ichthyosaurs, you know, so that niche if you like was kind of locked off to them. |
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| All too often books written for a popular audience include animals such as mammoths, mastodons, plesiosaurs, ichthyosaurs, and the sail-backed Dimetrodon. |
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| These in turn fall victim to the snapping jaws of small to medium-sized ichthyosaurs, marine reptiles not unlike modern dolphins, and averaging some 3 meters in length. |
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| There are also the fossils of marine reptiles such as mesosaurs, ichthyosaurs and mosasaurs. |
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| Some extinct marine reptiles, such as ichthyosaurs, evolved to be viviparous and had no requirement to return to land. |
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| The oceans were inhabited by marine reptiles such as ichthyosaurs and plesiosaurs, while pterosaurs were the dominant flying vertebrates. |
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| Even if thunniform ichthyosaurs could hold their bodies perfectly rigid when swimming, Cowen, speculates they may have porpoised, anyway. |
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| Other important discoveries of ichthyosaurs, plesiosaurs and a pterosaur followed, as well as invertebrates such as cephalopods and their ink sacs. |
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| The latter include ichthyosaurs, which were at the peak of their diversity, plesiosaurs, pliosaurs, and marine crocodiles of the families Teleosauridae and Metriorhynchidae. |
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| Ichthyosaurs first appeared in the Early Triassic as fully fledged aquatic animals with no obvious ancestral forms. |
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| Ichthyosaurs were not dinosaurs, but represent a separate group of marine vertebrates. |
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| Ichthyosaurs gradually disappear from the fossil record of about 90 million years ago, a full 25 million years before mass die-offs wiped out the dinosaurs. |
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