Man has not existed during the time of dinosaurs. However, the oldest, perhaps, descendant of man might have existed. Lucy (Australopithecus) was a descendant of man which lived around three point five million years ago (3,500,000). Ardi (Adripithecus?) on the other hand, was also a descendant of man which lived around four point four million years ago (4,400,000).
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.
Plesiosaurs were not dinosaurs. They were a clade of marine reptiles that lived at the same time as the 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 could not not fly but pterosaurs lived during the dinosaurs age and they could fly. pterosaurs are not flying dinosaurs they are flying reptiles that lived at the same time as dinosaurs. Some examples of Pterosaurs are: Pterodon Pterodactlus Hopee this helpsss! from Megggannn
Dinosaurs lived before the continents separated from each other. Dinosaurs lived over wide areas in different places.
Many of their genes are the same.
On the contrary, all the evidence shows that, excluding birds, all dinosaurs died out long before people evolved. Dinosaur fossils date to 65.5 million years ago or later, and human fossils date to less than 2.3 million years ago. However, if you count birds as dinosaurs, then the proof is that they're still here today.
Pterodactylus were pterosaurs, and although pterosaurs are often called "flying dinosaurs," they were not dinosaurs. Pterosaurs were flying reptiles that lived at the same time as dinosaurs, but they don't share the same common ancestor as dinosaurs and thus don't fall into the clade Dinosauria.
Probably the same way everyone does... they found fossil evidence.
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.
All dinosaurs lived in the same era of COURSE! The mezoic era.
the same amount of water we have today... (70%)