1937  Bisatoceras Miller & Owen: 417.
non  1939  Schartymites Librovich: 16, 40 (nom.nud.).
non  1940  Pseudobisatoceras Maximova: 859 (nom.nud.).
     1948  Bisatoceras.- Maximova: 20.
 ?   1957  Bisatoceras.- Treatise: L60.
     1960  Bisatoceras.- Ruzhentsev: 213.
     1962  Bisatoceras.- Osnovy: 377.
     1965  Bisatoceras.- Gordon: 249.
     1968  Bisatoceras.- McCaleb: 34.
     1975  Bisatoceras.-Nassichuk: 98.
     1982  Bisatoceras.-Nishida & Kyuma: 37.

Type species: Bisatoceras primum Miller & Owen, 1937, p. 417
[OD].

A:   Conch subdiscoidal, umbilicus very narrow or closed; immature growth stages globular.
B:   Growth lines usually biconvex, forming ventral and lateral sinuses.
D:   Constrictions may be present.
G:   Median saddle of ventral lobe exceeding two third of height of entire ventral lobe. Adventitious lobe simple, with convex
sides.

[Nassichuk, 1975, p.98: The conch of Bisatoceras is subdiscodal, and has a small, nearly
closed umbilicus.Whorls width approximates 75 per cent of the whorl height at maturity;
during early growth stages whorls are globular. Ornament includes transverse growth lamellae
which form ventral and lateral sinuses and ventrolateral and dorsolateral salients. Two or
three lateral constrictions are apparent on each whorl during early ontogenetic stages but
constrictions are absent at full maturity.
  Details of the suture best characterize the genus. Prongs of the ventral lobe are
accuminate and inflatted and are broader than the first lateral saddle. The secondary
ventral saddle is nearly as high as the rounded lateral saddle and is narrow and
accuminate and the umbilical lobe is shallow and rounded].