Pterosaurs are one of only three groups of vertebrates to have evolved flapping flight and the only such group that is extinct. Differences in relative lengths of skeletal elements are known to influence flight mechanics and aerodynamic performance in extant vertebrates. To explore the possibility of similar patterns in Pterosauria, the author examined the allometric scaling of the lengths of pterosaur skeletal elements across their entire phylogentic range and through ontogenetic growth in three species
