Sexual Dimorphism and Life History of Keichousaurus hui (Reptilia: Sauropterygia)

@inproceedings{Cheng2009SexualDA,
  title={Sexual Dimorphism and Life History of Keichousaurus hui (Reptilia: Sauropterygia)},
  author={Yen-nien Cheng and Robert B. Holmes and Xiaocong Wu and Noel Alfonso},
  year={2009}
}
ABSTRACT A large collection of recently prepared, complete specimens of Keichousaurus hui provides a wealth of new anatomical data for this taxon. Sexual dimorphism can be unambiguously quantified by proportions of the humerus as well as ratios of humerus length to standard length and femoral length. Multivariate (principal components and discriminant) analysis identified ratios most useful in distinguishing the sexes. Sexual maturity was reached in males at approximately 126 mm snout-vent… 
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