Tanimasanoria japonica (Kase, 1990)

"Shell medium-sized, approaching 27 mm in height, thick, cylindrical olivoid, height about 1.7 times width; spire very low, height about 0.1 total shell height; apex obtusely pointed; protoconch of round, smooth whorls numbering about 1.5, separated by impressed suture; spire whorls very weakly convex; body whorl large, rounded, slightly constricted anteriorly, with fasciolar band located at anterior one-third of body whorl; fasciolar band divided into upper and lower parts by blunt spiral ridge; weak ancillid band present just anterior to periphery, separated from fasciolar band by area without callus deposits; aperture narrow, lanceolate, very weakly prosocline to shell axis; outer lip evenly rounded; parietal region weakly convex with thin callus deposits; columella thick, short, smooth with strong obtuse angulation at middle, separated from fasciolar band by indistinct anterior fasciolar groove; anterior notch thickened by callus deposits, shalowly sinuated; surface covered with sigmoidal, more or less rugose growth lines.". Cretaceous. Azenotani Mudstone Member, Earliest Maastrichtian. Izumi Mountains, near Osaka, Japan.