Calliostoma spec. 2

(Figures 40–44)

Material. Anda 2 (2 juveniles and 2 partially preserved subadults); Anda 3 (2 juveniles); Anda 4 (1 subadult partially preserved); Anda 6 (2 juveniles); AndaDeVos (2 juveniles); AndaClif3 (1 juvenile).

Characterization. Shell conical, H 1.6 mm, W 1.4 mm; DN 0.18–0.20 mm; distinct terminal varix marks P/T boundary at 1.1 whorls; spiral and axial sculpture with spines at intersections; lower primary rib develops into peripheral row of spines; sutural ramp progressively concave; base of studied material damaged; umbilicus probably open, encircled by two rows of granules.