1977  Prototoceras cf. xiangulingense.-Xu & Wei: 580, pl.218 fig.4-5,
         ----  Prototoceras sp. Xu & Wei: 580, pl.218 fig.11.
non1985  Prototoceras sp. A Bando & Ehiro: 42, pl.7 fig.4a-b, textfig. 9B, [see Vescotoceras sp., TAX6517],
non   ----  Prototoceras sp. B Bando & Ehiro: 43, pl.7, fig.5a-b,        [see Vescotoceras sp., TAX6517],
non   ----  Prototoceras sp. C Bando & Ehiro: 43, pl.7 fig.6a-b, textfig.9C   [see Vescotoceras sp., TAX6517].
     1999  Prototoceras sp. Fujikawa & Ishibashi: 107, pl.3 fig.1,7,13,16.