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  1. Ichthyosauria - Wikipedia

    Ichthyosauria[a] is an order of large extinct marine reptiles sometimes referred to as "ichthyosaurs", although the term is also used for wider clades in which the order resides.

  2. Ichthyosaur | Definition, Size, Fossil, & Facts | Britannica

    Ichthyosaur, any member of an extinct group of aquatic reptiles, most of which were very similar to porpoises in appearance and habits. These distant relatives of lizards and snakes (lepidosaurs) were …

  3. What is an ichthyosaur? The real sea dragons that once swam beneath …

    1 day ago · Find out what fossils have revealed about ichthyosaurs, which included the biggest marine reptile that ever lived.

  4. Prehistory 101: Ichthyosaurs - Education

    Oct 19, 2023 · Learn about these prehistoric marine reptiles and see how features, such as basketball-sized eyes and a vertical tail, helped the ichthyosaur secure a place at the top of the ancient food …

  5. Ichthyosaur: Apex predator of the dinosaur-era seas

    May 20, 2022 · Ichthyosaurs were predatory marine reptiles that could grow to enormous sizes and ruled the seas during part of the dinosaur era. For a chunk of the millions of years when dinosaurs …

  6. Ichthyosauria - University of California Museum of Paleontology

    Ichthyosaurs were not dinosaurs, but represent a separate group of marine vertebrates. Because ichthyosaurs were so specialized and modified for life in the ocean, we don't really know which …

  7. Ichthyosaurs - Earth History

    As it happens, Temnodontosaurus was the very first ichthyosaur to be discovered, by 12-year-old Mary Anning in 1811, who found remains of its skull and vertebrae on England’s Dorset coast. Despite …

  8. Ichthyosaur - New World Encyclopedia

    Ichthyosaurs (Greek for "fish lizard"— ιχθυς or ichthyos, meaning "fish" and σαυρος or sauros, meaning "lizard") were giant marine reptiles that resembled fish and dolphins, with an elongated, toothed …

  9. Ichthyosaur Guide: The Aquatic Marine Vertebrate - Ocean Info

    Ichthyosaurs were aquatic reptiles that resembled dolphins that lived 160 million years ago in the Mesozoic era. Their name Ichthyosaur is derived from 2 ancient Greek words, “ichthys” meaning fish, …

  10. Ichthyosaurs - Extinct Animal Encyclopedia

    Jan 6, 2025 · Ichthyosaurs were fascinating marine reptiles that roamed the oceans during the Mesozoic era. These unique creatures, which resembled modern dolphins, thrived for over 160 …