1887  Propinacoceras affine Gemmellaro: 59, pl.9 fig.11-15.
     1935  Propinacoceras affine.-Greco: 179, pl.15 fig.6a-b.
     1943  Propinacoceras affine.-Miller & Unklesbay: textfig.3D.
     1982  Propinacoceras affine.-Liang: 647, pl.2 fig.1,2, textfig.1.