A–E, H–L. Hildoglochiceras kobelli (Oppel, 1863b) (M); A, B. KSKV2019Jara/42. A. Left side view showing phragmocone and part of body chamber; B. Right side view showing phragmocone and part of body chamber, note on both sides spiral grooves are developed even at a diameter less than 10 mm; C, D. KSKV2019Jara/39; C. Left side view; D. Right side view, bothshowing phragmocone and beginning of body chamber, presence of spiral groove even at diameter less than 10 mm and closely spaced crescentic ribs along the periphery towards the end of phragmocone, note beginning of crescentic ribs shown by triangles; E. KSKV2019Jara/40, right side view of a tiny (diameter ca 4 mm) specimen showing phragmocone and a part of body chamber. Note absence of spiral groove but presence of crescentic rib at dimeter less than 4 mm; H, I. KSKV2020Jara/12. H. Left side view; I. Right side view, showing a large part of body chamber perhaps up to peristome. Note on both sides spiral groove on the body chamber closely spaced crescentic ribs. Note remains of the shell at umbilical shoulder and along spiral groove. This suggests present-day erosion. J–L. KSKV2020Jara/11; J. Apertural view; K. Ventral view; L. Right side view showing end of phragmocone and body chamber. Note on spiral groove on the body chamber and closely spaced crescentic ribs. F, G. Hildoglochiceras kobelliforme (Bonarelli, 1894) (m) KSKV2019Jara/32; F. Left side view; G. Right side view, both showing phragmocone and a part of body chamber, presence of a wide spiral groove. Note traces of ribs both near the end of phragmocone and in the beginning of the body chamber; M. Close up view of upper surface of the lower most part of the Hildoglochiceras bed which is coarse grained micritic sandstone showing juvenile Hildoglochiceras and haploceratids.