Notes on certain primitive heterodont pelecypods. American Museum novitates ; no. 1857

Newell, Norman Dennis, 1909-2005-10-062005-10-061957http://hdl.handle.net/2246/446314 p. : ill. ; 24 cm.Includes bibliographical references (p. 13-14).2647738 bytesapplication/pdfen-USQL1 .A436 no.1857, 1957Bivalvia, Fossil.Bivalvia -- Anatomy.Bivalvia -- Evolution.Mollusks -- Phylogeny.Notes on certain primitive heterodont pelecypods. American Museum novitates ; no. 1857text