J. G. M. Thewissen
= J. G. M. Thewissen
{c}
A <paleontologist> who investigated terrestrial early <cetacean> <endoskeletons> and their relationship to <artiodactyls>.<Skeletons of terrestrial cetaceans and the relationship of whales to artiodactyls by J. G. M. Thewissen and others>[Author roster and research findings]{ref}