Published online by Cambridge University Press: 01 May 2009
The last Study brought out many resemblances between Edrioasteroidea and Asteroidea, much closer than have been recognized even by some who have suggested a derivation of the latter Class from the former. In the present Study it is proposed to inquire whether that hypothesis, or any similar hypothesis, is tenable.
1 “Revision of Paleozoic Stelleroidea,” U.S. National Mus., Bull. 88, 20 03, 1915.Google Scholar This valuable work appeared some months after these paragraphs were first written.