New species of ammonite opercula from the Mesozoic rocks of Cuba. American Museum novitates ; no. 28

O'Connell, Marjorie, 1890-Brown, Barnum.2005-10-062005-10-061921http://hdl.handle.net/2246/466215 p. : ill. ; 24 cm.Includes bibliographical references (p. 12-15).8487990 bytesapplication/pdfen-USQL1 .A436 no.28, 1921Aptychus cristobalensis.Aptychus cubanensis.Aptychus pimientensis.Ammonoidea -- Cuba -- Pinar del Río (Province)Mollusks, Fossil -- Cuba -- Pinar del Río (Province)Paleontology -- Mesozoic -- Cuba -- Pinar del Río (Province)Paleontology -- Cuba -- Pinar del Río (Province)New species of ammonite opercula from the Mesozoic rocks of Cuba. American Museum novitates ; no. 28text