What was the age of dinosaurs?

Answer 1

It would depend what kind of dinosaur. Small therapods like Microraptor and Compsognathus may of only had a short life span of only 3-4 years, whilst the giant sauropods such as Apatosaurus and Camarosaurus would have probably lived to maybe even 100! It all depends on the dinosaur's size. This isn't always true of course, if the animal caught a disease or was attacked it wouldn't live as long, obviously. This all just theory, but the most likely one.

Answer 2

The age of the dinosaur would depend on what species. A very small dinosaur such as Compsognathus may only have lived up to a few years of age, while some giant long necked Sauropods like Diplodocus and Aptosaurus have been estimated to live way into their 80's. It has been calculated that if a large Sauropod grew at the same rate as a modern crocodile, it would live up to 200 years! This however, seems quite unlikely, but who knows?

Answer 3

So this is what I know:

1. Absolutely nothing about ornithischians.

2. Sauropods, the largest animals to ever exist ever, apperently reached full size in their 20's. After that, they tend to live for ridiculously long times, comparable to the Galapagos Tortoise Geochelys. I'm talking, like, 100 years or so. During the Jurassic period, when the single largest animal ever Amphicoelias lived (even conservative estimates of his length put him at around 48 meters long, that's Godzilla-sized), the largest of their natural predators the Carnosaurs were not big enough to take down many full-grown animals. So, they likely lived until they died of a disease or old age. What old age is for an Amphicoelias is... unguessable without sounding too ridiculous.

3. Theropods tend to have lifespans more comparable to us. For example, and I'm getting this from Tom Holtz here, the more specialized Tyrannosaurs, the ones with two fingers, matured at around the age of 18, and would venture out on their own to take the niche of a medium-sized (by Mesozoic standards) predator. Cariama, the only living dinosaur with a killing claw like that of Velociraptor, and probably only bird (as far as I know), have been recorded to live around 40 years in captivity.

The only smaller theropods I know about age-wise are passers, who, and this is probably a gross generalization but it's all I got, have much shorter lifespans. Ever had a pet canary? That's what I'm talking about.

Big Al, the Allosaurus Tim Haines made a documentary about, was I think 12 years old at the time of it's death. If I'm remembering this correctly, he reached maturity at age 4.

That's all I can think of.
17 Answer: The life span of dinosaurs can only be estimated from the life spans of similar creatures in the world today and from factors like size and clues on their metabolism. In today's world animals like like tortoises live for up to 152 years and alligators up to 66 years . Estimates for dinosaurs range from 75 to 300 years.

Answer 4

they can live up to many years about 30 40 years old

Answer 5

The Age of the Dinosaurs is referred to by scientists as the Mesozoic. The Mesozoic is the era spanning from 252.2 million years ago to 65.5 million years ago.

Answer 6

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