Hard to give a specific dinosaur as lifespans varied from tens of years to hundreds of years. Their age can be estimated from the maximum lifespans of modern reptiles, such as the 66-years of the alligator.
The dinosaur that lived the longest was the Brachiosaurus, which lived around 150 million years ago during the Jurassic period.
The longest dinosaur is believed to be Argentinasaurus, which could grow to 110 feet.
The second longest dinosaur is Argentinosaurus, at 140 ft long.
its a dinosaur it is the dinosaur with the longest name ever
Micropachycephalosaurus (meaning small thick head lizard) is the largest name of a dinosaur in the world.
AMPHICOELIAS
The fastest dinosaur that ever lived was the cheetah-sized dinosaur called the Compsognathus.
The oldest living dinosaur was the Staurikosaurus. It lived about 220 million years ago!
Dinosaur dont lived Earth any more, they died.
Diplodocus had the longest whip-like tail ever.
Liopleurodon
The tallest dinosaur ever discovered is a Sauroposeidon.However, this is not the longest or most massive dinosaur.