New records of acanthoceratid ammonoids from the Upper Cenomanian of South Dakota. American Museum novitates ; no. 3161

Kennedy, W. J. (William James)Cobban, William A., 1916-2015.Landman, Neil H.2005-10-062005-10-061996http://hdl.handle.net/2246/362118 p. : ill. ; 26 cm.Includes bibliographical references (p. 17-18)5806208 bytesapplication/pdfen-USQL1 .A436 no.3161 1996Acanthoceratidae -- South Dakota.Mollusks, Fossil -- South Dakota.Paleontology -- Cretaceous -- South Dakota.Paleontology -- South Dakota.New records of acanthoceratid ammonoids from the Upper Cenomanian of South Dakota. American Museum novitates ; no. 3161text