The Upper Cretaceous dimorphic pachydiscid ammonite Menuites in the western interior of the United States
by William A. Cobban and W. James Kennedy.
- Washington Denver, CO U.S. G.P.O. For sale by USGS Map Distribution 1993.
- 14 p., [28] p. of plates ill., map 28 cm.
- U.S. Geological Survey professional paper 1533 .
Title p. [4] of cover: Upper Cretaceous ammonite Menuites, western interior, U.S..