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No. Plesiosaurs were marine reptiles, not dinosaurs. Saurichians were one of the two main groups of dinosaurs (which included sauropods - such as Apatosaurus - and theropods - such as T. rex).
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∙ 14y ago
Wiki User
∙ 14y agoMosasaurs are distantly related to monitor lizards such as komodo dragons, but there fossils speak an even closer kinship with snakes. There skulls are amazingly similar, with a virtually indentical configuration of bones. Just like snakes, mosasaurs also swallowed there prey whole. But it is more likely that snakes and mosasaurs shared a common ancestor millions of years earlier - perhaps a smallish reptile whose forebears had left the land and adapted life in the sea.
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∙ 15y agoPlesiosaurs are a completely different type of reptile, closer to modern lizards than to dinosaurs.
Wiki User
∙ 14y agoPlesiosaurs and mosasaurs are two completely different kinds of marine reptiles, just like seals and whales are two completely different kinds of marine mammals.
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Who found out about Dinosaurs?
First off, plesiosaurs and pterodactyl were not dinosaurs. Plesiosaurs were their own group of reptiles more closely related to lizards than to dinosaurs. Pterodactyl was a pterosaur, which were a group separate from, but related to dinosaurs. Plesiosaurs are generally considered to have been discovered by Mary Anning. Pterosaurs are said to have been discovered by Cosmio Collini.
Does a plesiosaur a dino?
Plesiosaurs were not dinosaurs. They were a clade of marine reptiles that lived at the same time as the dinosaurs.
What were the names of the swiming dinosaurs?
There were no ocean dwelling dinosaurs. Large marine reptiles that are often thought of as dinosaurs include plesiosaurs, pliosaurs, mosasaurs, and icthyosaurs.
What are three types of dinosaurs that live in Antarctica?
They include Ankylosaurs (the armored dinosaurs), Mosasaurs, and Plesiosaurs (both marine reptilian groups).
Which dinosaurs live in water?
No dinosaurs lived in water. The prehistoric reptiles that lived in water were the Plesiosaurs, not dinosaurs.
Is loch ness monster a dinosaur?
No plesiosaurs are not dinosaurs. Besides, there's no real evidence that it exists.
What was the largest prehitoric aqua dinosaur?
There were no aquatic dinosaurs. Some prehistoric marine reptiles are mistakenly called dinosaurs. These include plesiosaurs, pliosaurs, icthyosaurs, and mosasaurs.
What is one dinosaur fact?
Most dinosaurs are reptilian, with scales. However it is possible that some dinosaurs are warm blooded. Plesiosaurs, Ichythosaurs, Mosasaurs, and Pterosaurs aren't dinosaurs; they're just related to them.
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.
Was elasmosauros a dinosaur?
Elasmosaurus was a plesiosaur. Plesiosaurs are aquatic reptiles that are not related to dinosaurs, but may be distantly related to modern lizards.
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 Dinosaurs in the water?
Dinosaurs were all terrestrial creatures, although a few, such as Spinosaurus and Baryonyx, specialized in freshwater fishing. Large marine reptiles that were not dinosaurs but existed at the same time include plesiosaurs, pliosaurs, icthyosaurs, and mosasaurs.
