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.
There are no dinosaurs that are still alive.
a plesiosaur
Godzilla
The dicynodon was an ancient dinosaur which lived in Africa. It is estimated that this dinosaur lived 250?æmillion years ago and lived partially on land and in the water.
they usually live in water were there is a lot of space. Also the water they live in is somewhat shallow. :)The kind of environment in which the mesosaurus lived was a marine environment with a much larger amount of saline than in today's marine environments. The dinosaur spent all of its life in the water.
There are many dinosaurs that have lived on Earth. To find out the sizes of most dinosaurs check on Wikipedia or what have you.
One particular Dinosaur called Hadrosaurs (Duck-billed dinosaur)
The only known dinosaur to live in Oregon was an unknown species of Hadrosaur.
we can't say, because were discovering more all the time. there is actually no such thing as a dinosaur that spent its whole life in water as one of the definitions of a dinosaur is an animal with steady legs that support it on land. any water animal would have flippers so they cant stand. the animals that lived in the water were just animals that lived in the dinosaur period not actual dinosaurs.
Once upon a time, there lived a lonely but kind old man in a small village.
Dinosaur dont lived Earth any more, they died.
Coelophsis was a dinosaur that lived in the Late Triassic Period. The dinosaur is said to have lived in small herds with others.
The spinosaurus was the largest carniverous dinosaur. It is called spinosaurus because of the fin on its bag. This dinosaur was a water dwelling dinosaur that was hunted by the largest crocodile that ever lived.
One of them was the Hadrosaur a giant dinosaur that got up to 40ft in length, you can research it on google or bing.