A note on Permian crassatellid pelecypods. American Museum novitates ; no. 1878

Newell, Norman Dennis, 1909-2005-10-062005-10-061958http://hdl.handle.net/2246/45796 p. : ill. ; 24 cm.Includes bibliographical references (p. 6).1893457 bytesapplication/pdfen-USQL1 .A436 no.1878, 1958Crassatellidae, Fossil.Paleontology -- Permian.Bivalvia, Fossil.A note on Permian crassatellid pelecypods. American Museum novitates ; no. 1878text