1965  Neopericyclus Popov: 45.
     1968  Neopericyclus.- Popov: 98.
     1980  Neopericyclus.- Kuzina: 69.

Type species: Neopericyclus kokdzharensis Popov, 1965, p. 46.

Like Ammonellipsites, but with ornamentation consisting of faint polyschizotomous ribs, which split close to umbilicus.

[Popov 1968, p.98: Conch more or less thickly discoidal, semi-evolute.  Ventral side convex, lateral sides flat.  
Umbilical rim sub-angled.  Umbilicus wide, graduated.  Shell surface ornamented by thin radial ribs,
which bifurcate on the lateral wall.  Some of these thicken in the preumbilical zone of the lateral wall during youth
(diameter = 30-40mm).  Between the equidistant thick ribs are thin ones.  On the ventral side and
on the lateral sides the ribs are bent into sinuses, and form slight salients on the ventrolateral zone and in front of the
umbilicus. Ventral lobe moderately wide, with diverging to the front, bent sides;  the siphuncular saddle forms approx.
0,34 of the ventral lobe depth. First outer saddle not widely rounded, lateral lobe helmet shaped, sharpened,
lateral saddle low and widely rounded.  A small umbilical lobe is located on the umbilical wall. ]

[KUZINA 1980, p.69: Conch subdiscoidal, with moderately involute whorls. Umbilicus moderately narrow or of middle
size, graduated.  Sculpture of thin ribs, which bifurcate on the side;  between these intercalated  ribs are present at
the top of the lateral sides.  Ribs in the pre-umbilical part are less frequent and coarser in young individuals.  Ventral
lobe comperatively wide, with convex sides, which are slightly diverge at the front.  Median saddle moderately high.
First lateral saddle rounded at the top.  Lateral lobe as deep as ventral lobe.]

Fig. see TAX3039 A: Neopericyclus kokdzharensis, B: N. moldotooensis, sutures (from Popov, 1968, fig.21).