Permian Gastropoda of the southwestern United States. 7. Pleurotomariacea : Eotomariidae, Lophospiriidae, Gosseletinidae. American Museum novitates ; ; no. 2958.

Batten, Roger Lyman.2005-10-062005-10-061989http://hdl.handle.net/2246/511464 p. : ill. ; 26 cm.Bibliography: p. 62-64.16107239 bytesapplication/pdfen-USQL1 .A436 no.2958 1989Pleurotomariacea.Gastropoda, Fossil.Mollusks, Fossil -- Southwestern States.Paleontology -- Permian -- Southwestern States.Paleontology -- Southwestern States.Permian Gastropoda of the southwestern United States. 7. Pleurotomariacea : Eotomariidae, Lophospiriidae, Gosseletinidae. American Museum novitates ; ; no. 2958.text