When the dinosaurs lived there were sea monsters but they were called marine reptiles and were not dinosaurs.
Some sea creatures have ansetors of dinosaurs
Dinosaurs that lived in the sea are generally referred to as marine reptiles, not dinosaurs. These marine reptiles include creatures like ichthyosaurs, plesiosaurs, and mosasaurs.
I guess water dinosaurs did :)
177,000,000 years ago ate other sea dinosaurs
No! Although this is a common mistake, all dinosaurs were land animals. All animals that lived in the sea at the same time as the dinosaurs weren't actually classed as dinosaurs even though they have similarities :)
Dinosaurs
sea creatures and people.
The first animals were strange sea animals. Dinosaurs didn't evolve until hundreds of millions of years afterward.
Walking with Dinosaurs - 1999 Sea Monsters 1-10 was released on: USA: 1999
There are no names of underwater dinosaurs because there were no underwater dinosaurs. Sea reptiles that lived at the same time as the dinosaurs were around. Names of these sea-living reptiles include: Liopleurodon, Opthalmosaurus and Tylosaurus.
No dinosaurs lived in the sea. At the same time as the dinosaurs, there were OTHER CREATURES that adopted a pelagic lifestyle. These included Giant turtles, like Archelon, Icthyosaurs ("fish lizards") and Mosasaurs, probably as close to "sea serpents" as the world has ever gotten, as well as the long-necked Pleisosaurs, which did look rather like dinosaurs with flippers, but none of these were actually dinosaurs.
Some people believe that some descendants of the dinosaurs that live in the sea include crocodiles or alligators. These animals have been on the planet for millions of years.