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III.—Studies in Edrioasteroidea, IX. The Genetic Relations to other Echinoderms

Published online by Cambridge University Press:  01 May 2009

Extract

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.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1915

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References

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.