Fig. 116 in Scaphites Of The ''Nodosus Group'' From The Upper Cretaceous (Campanian) Of The Western Interior Of North America

Fig. 116. Septal approximation at maturity in Hoploscaphites brevis (Meek, 1876). A–C. Macroconchs. A. BHI 7034, Baculites cuneatus Zone, Pierre Shale, Pennington County, South Dakota. Septal approximation occurs over three chambers and is strong (the interseptal distance of the last chamber is