Some Permian Gastropoda from eastern Arizona. American Museum novitates ; no. 2165

Batten, Roger Lyman2005-10-062005-10-061964http://hdl.handle.net/2246/445716 p. : ill. ; 24 cm.Includes bibliographical references (p. 16).1921784 bytesapplication/pdfen-USQL1 .A436 no.2165, 1964Gastropoda, Fossil -- Arizona.Mollusks, Fossil -- Arizona.Paleontology -- Permian -- Arizona.Paleontology -- Arizona.Some Permian Gastropoda from eastern Arizona. American Museum novitates ; no. 2165Permian gastropodatext