What happened to the dinosaurs?
Posted: Thu Jan 08, 2009 5:05 am
Watching TV re. the K-T boundary and the end of the dinosaurs.
The TV program gave several theories, including the Yucatan killer meteor theory. But one guy on the program made a big deal that dinosaurs ended before the K-T boundary because of the fact that no dinosaur bones have ever been found at the K-T boundary. I got to wondering what the probability is that we would have found one bone from the KT boundary, if that is when the die off happened.
Given the length of the Mesozoic age of dinosaurs, the number that must have lived and died, the number that died in the final die off, and the number of bones we have found. With no data, I estimated everything using 125 million years as the length of the Mesozoic age. I come up with 50/50 chance that we would have found one bone within 200,000 years of the K-T boundary.
What do you think?
The TV program gave several theories, including the Yucatan killer meteor theory. But one guy on the program made a big deal that dinosaurs ended before the K-T boundary because of the fact that no dinosaur bones have ever been found at the K-T boundary. I got to wondering what the probability is that we would have found one bone from the KT boundary, if that is when the die off happened.
Given the length of the Mesozoic age of dinosaurs, the number that must have lived and died, the number that died in the final die off, and the number of bones we have found. With no data, I estimated everything using 125 million years as the length of the Mesozoic age. I come up with 50/50 chance that we would have found one bone within 200,000 years of the K-T boundary.
What do you think?