Tyrannosaur Life Tables: An Example of Nonavian Dinosaur Population Biology

@article{Erickson2006TyrannosaurLT,
  title={Tyrannosaur Life Tables: An Example of Nonavian Dinosaur Population Biology},
  author={Gregory M. Erickson and Philip J. Currie and Brian D. Inouye and Alice A. Winn},
  journal={Science},
  year={2006},
  volume={313},
  pages={213 - 217}
}
The size and age structures for four assemblages of North American tyrannosaurs—Albertosaurus, Tyrannosaurus, Gorgosaurus, and Daspletosaurus—reveal a pronounced, bootstrap-supported pattern of age-specific mortality characterized by relatively high juvenile survivorship and increased mortality at midlife and near the maximum life span. Such patterns are common today in wild populations of long-lived birds and mammals. Factors such as predation and entrance into the breeding population may have… 
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