1930  Discotoceras Spath: 8
     1959  Discotoceras.-Ruzhentsev: 64.
     1962  Prototoceras.-Ruzhentsev: 95.

Tyxpe species: Hungarites raddei Arthaber, 1900, p.234; OD].

[Spath, 1930, p.8: More or less involute, smooth, platycones,
with fastigate periphery and sharply marked umbilical rim, and
ceratitic suture-line, with broad and low saddles and narrow
lobes.]

[Ruzhentsev, 1959: The shell is disc-shaped, stronly involute,
with a tectiform ventral side. The lateral sides have not great
convexness for two/thirds of the distance from the ventral edge
to the umbilicus; from there they draw together on both sides.
The drawn off umbilical shoulder slightly visible in a young
individual, with age quite disappears. The umbilicus is of not
great dimensions. The suture line is in general of the same type,
as the typical Prototoceras.
Sharply differs from genera Araxoceras and Rotaraxoceras in both
form of the shell, and in the contours of the suture line. Very
near to the genus Prototoceras, because of this, perhaps, it
ought to be considered in the range of the subgenus. Differs from
Prototoceras by a disappearing drawn off umbilical shoulder.]