Fig. 32. A in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 32. A. Plot of LMAX/H4 versus LMAX/H2 in macroconchs of Hoploscaphites nodosus (Owen, 1852) and H. brevis (Meek, 1876), Pierre Shale and Bearpaw Shale, Baculites compressus–B. cuneatus zones. B. Plot of LMAX/H4 versus apertural angle in macroconchs of Hoploscaphites nodosus and H. brevis, Pierre Shale and Bearpaw Shale, Baculites compressus–B. cuneatus zones.