1958a Triainoceras sp. Bogoslovskiy, p.129, pl.8 fig.4-7.
     1965a Triainoceras sp. .-Bogoslovskiy, pl.5 fig.4.
     1969  Triainoceras sp. .-Bogoslovskiy, p.281, pl.25 fig.4,5,
           pl.27 fig.1.