1963  Anetoceras advolvens.-Hollard: pl.1 fig.2.
     1974  Anetoceras obliquecostatum Ruan & He: 238, pl.119  fig.12.
     1977  Anetoceras obliquecostatum.-Xu & Wei: 551, pl.207  fig.11.
     1981  Anetoceras obliquecostatum.-Ruan: 19, pl.1 fig.2-4,
           10,  13, 14, 16.
     1996  Ruanites obliquecostatus.-Ruan: 104, pl.14.1 fig.1, 7.
     2001  Ruanites obliquecostatus.-Klug: 487, fig.8:2, 8:8.

Holotype: NIGP Nanjing 22021.

Klug, 2001, p.488: Ruanites with very thinly discoidal conch (ww/dm = 0.15 at dm = 70 mm). Relative distance between subsequent whorls is largely constant in middle growth stages and gently increasing in late growth stages (at dm > 70 mm). Moderate whorl expansion rate in the middle and late growth stages (1.5 to 1.9 at dm = 60 to 90 mm) and moderate whorl interspace rate 1.2 to 1.4. Very wide umbilicus (uw/dm = 0.55-0.70). Between 60 and 90 mm diameter, 50 to 60 rursiradiate convex ribs per whorl and coarse growth lines run parallel to the ribs.