Does anyone know how many years ago the dinosaurs became extinct?
Dinosaurs went extinct about 65 million years ago (at the end of the Cretaceous Period), after living on Earth for about 165 million years. If all of Earth time from the very beginning of the dinosaurs to today were compressed into 365 days (1 calendar year), the dinosaurs appeared January 1 and became extinct the third week of September. (Using this same time scale, the Earth would have formed approximately 18.5 years earlier.) By comparison, people (Homo sapiens) have been on earth only since December 31 (New Year's eve). The dinosaurs' long period of dominance certainly makes them unqualified successes in the history of life on Earth.
There is still no definite explanation as to why dinosaurs disappeared. But scientists have been arguing on several theories on the possibilities of what might have occurred. One thing is for sure, dinosaurs became extinct at the end of the cretaceous period about 65 million years ago and fossils and rock formation is continuously being studied by paleontologists to solve or shed light to this issue.
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Well, yes ... 65 Mya.
But there is some evidence that Homo sapiens may have been around as much as 10.5 Mya. Not exactly walking with the dinosaurs, but there were some pretty scary creatures in the late Miocene epoch.
The thin layer of debris at the K-T (Cretacious-Terciary) boundary points to a giant meteor impact or several such impacts within a relatively short span of time. For dino and friends, it was "lights out!"
by Chauncey St Clair3 years ago
What would happen if humans became extinct?The BBC presented this very compelling question and since I just finished an article about bats and how they could wipe us all out, I find it to be a very interesting question...
by Castlepaloma6 years ago
Or Crouching Dragon and Hidden Dinosaur: In the Bible the word Tanniyn occurs 28 times in the Bible and is normally translated “dragon.” It is also translated “serpent,” “sea monster,” “great...
by lankaexotic6 years ago
If the dinosaurs did not happen to die 65 million years ago, what would Earth be like at present?
by Debra Allen3 years ago
Do you think humans will go extinct?Will all life also go extinct?
by Rochelle Frank3 years ago
Do you think the dinosaurs could have survived...... if they had built underground bunkers, stored dried food and had plenty of ammo?
by dl53acy8 years ago
Do you believe that dinosaurs walked the earth millons of years ago?Dinosaurs such as T-Rex and so on.
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