Record-breaking tooth fossil suggests massive dinosaurs

12/23/2012 | New Scientist

Paleontologists have identified a nearly 3-inch-long fossil of a sauropod tooth in Argentina, making it the record holder for sauropod teeth. Rodolfo Garcia of the National University of Rio Negro found the tooth, and suggests that the plant-eating sauropods could have reached larger sizes than previously thought. The largest ones, called titanosaurs, are estimated to have measured about 98 feet from nose to tail and weighed up to 80 metric tons.

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