Leon P A M Claessens
Dr. L Claessens, Assistant Professor at Harvard University for Vertebrate
Paleontology and Anatomy
College of the Holy Cross in Worcester, Massachusetts
Claessens L. P. A. M., O'Connor P. M. and Unwin D. M., 2009, Respiratory Evolution Facilitated the Origin of Pterosaur Flight and Aerial Gigantism. PLoS ONE 4(2): e4497. doi:10.1371/journal.pone.0004497