1884  Gastricerae Hyatt: 325.
     1914  Gastrioceratidae.- Wedekind: 12.
     1937  Gastrioceratidae.- Plummer & Scott: 234.
     1941  Gastrioceratidae nov.fam. Hudson: 279.
     1957  Neoicoceratidae.-Treatise: L61.
     1957  Gastrioceratidae Hyatt,1884 - ICZN, Direction No.62
           (official list 1958, p.21, no.174.
     1960  Gastrioceratidae.-Ruzhentsev: 216.
     1962  Gastrioceratidae.-Kullmann: 31.
     1962  Gastrioceratidae.-Osnovy: 381.

Superfam.Gastriocerataceae:

A: Conch form variable, with broad whorl section and umbilicus.
Early whorls commonly evolute.
B-D: Shell smooth or sculptured. Transverse striae and
constrictions, if present, with ventral sinus or salient.
G: Prongs of ventral lobe relatively wide and pouched, its sides
being curved or straight, but usually not divergent; median
saddle half as high or higher than entire ventral lobe. First
lateral saddle rounded or subacute. Sutural formulae: [Germ.]
(E1EmE1)ALUI, [Russ.] (V1V1)LU:ID.

Fam. Gastrioceratidae:

A:   Conch form subdiscoidal to globular. Early whorls usually
evolute, adult stages with wide or moderately narrow umbilicus.
C:   Umbilical shoulder with nodes, generally elongate
transversely, sometimes combined with rather strong ribs.
B:   Growth striae sinuous or rather straight, mostly with
ventral sinus.
F:   Longitudinal lirae present in some forms.
G:   Ventral lobe wide, deeply subdivided, moderately pouched,
with asymmetrical prongs; height of median saddle exceeding half
the height of entire ventral lobe.