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 | | There is a major rift between researchers, some of whom think Meg should be classified as Carcharodon megalodon (which it was called from the early 1800s to 1960), and some who argue that it should be called Carcharocles megalodon, which it was changed to in 1960. |
 | | "It is easily distinguished from the megalodon lineage," says shark expert David Ward, "by its flatter crown and root, and a narrow, evenly wide burlette." "It was an early attempt to be a white shark that sadly failed." This shark lived from the early to middle Paleocene. |
 | | The second is to look at modern shark growth and the chemistry of modern shark centra that have grown for a known number of years to see if that animal has growth rings that correspond with its age. |
| www.megalodonexpeditions.com /risefall.htm (5989 words) |