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They are both varieties of aquatic reptile predators that went extinct long ago.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoOcean-dwelling animals living around the same time as the dinosaurs. They were NOT dinosaurs, as some believe.
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What were some of the unusual features of the ichthyosaurs and the plesiosaurs?
It was herbivorous
What is an archosaurs?
An archosaur is a reptile of the taxon Archosauria, including the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs, as well as modern crocodiles.
What is an archosaurian?
An archosaurian is an alternative name for an archosaur, a reptile of the taxon Archosauria, including the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs, as well as modern crocodiles.
What animals live in the Mesozoic?
Animal life was then dominated, by large archosaurian reptiles: dinosaurs, pterosaurs, and aquatic reptiles such as ichthyosaurs, plesiosaurs, and mosasaurs. the first birds and placental mammals also appeared
What kind of dinosaur lived in the water?
No dinosaurs specifically lived in the water. Plesiosaurs, pliosaurs, mosasaurs and ichthyosaurs lived in the water (but are not DINOSAURS). They are reptiles but not dinosaurs. They co-inhabited the planet with dinosaurs, in the same way that the pterosaurs ruled the air. Pterosaurs were not dinosaurs either.
Were they any dinosaurs living in water?
Define dinosaur. Dinosaurs were the dominant vertebrate animals of terrestrial ecosystems. Meaning they only lived in land. The ones that live in water are other reptiles but certainly they are not dinosaurs.There were numerous prehistoric reptiles that were aquatic, such as the ichthyosaurs, plesiosaurs and mosasaurs, that were alive during the time of dinosaurs.
Is plesiosaurs a common noun?
Yes, the noun 'plesiosaurs' is a common noun, a general word for a type of extinct, marine reptile; a word for any plesiosaurs.
What were the plants and animals in the period of the dinosaurs?
Other animals that lived at the same time as dinosaurs include early mammals and birds, pterosaurs, plesiosaurs, sharks, ichthyosaurs, and mosasaurs. Plants include conifers, cycads, ferns, seed ferns, horsetails, gingkoes, and mosses, and flowering plants came on the scene toward the end of the Mesozoic.
Are pterosaurs dinosaurs?
Pterosaurs are sometimes referred to in the popular media as dinosaurs, but this is incorrect. The term "dinosaur" is properly restricted to a certain group of terrestrial reptiles with a unique upright stance (superorder Dinosauria), and therefore excludes the pterosaurs, as well as the various groups of extinct aquatic reptiles, such as ichthyosaurs, plesiosaurs, and mosasaurs.
Was a plesiosaurs skin smooth?
Yes it was.
Is there such thing as a lizard that lives in the water?
Yes, crocodiles, caimans, alligators, gavials, saltwater crocodiles, sea turtles, terapins, hellbenders, and marine iguanas, are some that live today. During the mesozoic era, many reptiles lived in the water, like plesiosaurs, placodonts, mosasaurs, sea turtles, nothosaurs, thalattosuchians ichthyosaurs, and more.
Is the ichthyosaurs a vertebrate?
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