Dinosaurs: Juvenile, grownup or senior?

How previous have been the oldest dinosaurs? This query stays largely unanswered. The pure life span of those lengthy-extinct giants is of curiosity to scientists, together with questions relating to how briskly they might develop and the way they might get hold of enough vitamins from their habitat. Palaeontologists estimate via bone buildings whether or not a specific dinosaur fossil is a younger, grownup or very previous animal.
Paleontology News — ScienceDaily