Coryell, Horace Noble, 1888-Salmon, Eleanor Seely, 1910-Wasson, Theron, 1887-2005-10-062005-10-061934http://hdl.handle.net/2246/458518 p. : ill., maps ; 24 cm.Includes bibliographical references.3351881 bytesapplication/pdfen-USQL1 .A436 no.746, 1934Mollusks, Fossil -- Montana -- Dawson County.Paleontology -- Cretaceous -- Montana -- Dawson County.Paleontology -- Montana -- Dawson County.A molluscan faunule from the Pierre Formation in eastern Montana. American Museum novitates ; no. 746text