They are both varieties of aquatic reptile predators that went extinct long ago.
It was herbivorous
An archosaur is a reptile of the taxon Archosauria, including the extinct dinosaurs, plesiosaurs, pterosaurs and ichthyosaurs, as well as modern crocodiles.
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.
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
Robert Scott, a British geologist, discovered marine reptile fossils, specifically of ichthyosaurs and plesiosaurs, in the Jurassic rocks of Lyme Regis in England. His discoveries played a significant role in our understanding of prehistoric marine animals.
No dinosaurs lived in the sea. There were other reptiles that adopted a marine life, but those weren't dinosaurs.
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.
During the Jurassic Period, dominant organisms included dinosaurs such as Brachiosaurus, Stegosaurus, and Allosaurus. Other notable organisms included pterosaurs, marine reptiles like ichthyosaurs and plesiosaurs, and early mammals. The flora was dominated by conifers and ferns.
Fossils from the Jurassic period include dinosaurs such as Stegosaurus and Allosaurus, marine reptiles like Ichthyosaurs and Plesiosaurs, and early mammals and birds. Plant fossils like ferns, cycads, and conifers are also common from this period.
Yes, the noun 'plesiosaurs' is a common noun, a general word for a type of extinct, marine reptile; a word for any plesiosaurs.
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.
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.