Species: amtgai (NARMANDAKH, 1985) SUKHANOV & NARMANDAKH, 2006
Etymology:
= Adocus amtgai NARMANDAKH, 1985

Holotype: PIN 3640-2

Locality: Amtgay locality, Eastern Gobi District, Mongolia.

Horizon: Upper part of the Bainshireinskay Formation.

Age: Turonian or Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Early Late Cretaceous.

Material: Nearly complete shell.