Maiasaura, a model organism for extinct vertebrate population biology: a large sample statistical assessment of growth dynamics and survivorship

@inproceedings{Woodward2015MaiasauraAM,
  title={Maiasaura, a model organism for extinct vertebrate population biology: a large sample statistical assessment of growth dynamics and survivorship},
  author={Holly N Woodward and Elizabeth A. Freedman Fowler and James O. Farlow and John R. Horner},
  booktitle={Paleobiology},
  year={2015}
}
Abstract Fossil bone microanalyses reveal the ontogenetic histories of extinct tetrapods, but incomplete fossil records often result in small sample sets lacking statistical strength. In contrast, a histological sample of 50 tibiae of the hadrosaurid dinosaur Maiasaura peeblesorum allows predictions of annual growth and ecological interpretations based on more histologic data than any previous large sample study. Tibia length correlates well (R2 > 0.9) with diaphyseal circumference, cortical… 
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Bone microstructure is analysed to reconstruct the growth of some different-sized hipparionins from Greece and Spain and suggests that high adult mortality was the likely selective force behind early maturity and associated size decrease in the Greek lineage and that resource limitation accompanied by high juvenile mortality triggered decrease in growth rate and a relative late maturity in the Spanish lineage.
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