1971 Proshumardites principalis Ruzhentsev & Bogoslovskaya: 240, pl.20 fig.9-11.
1975 Proshumardites principalis.-Popov: 127, pl.43 fig.1, pl.50 fig.5.
1983 Proshumardites principalis.-Astachova: 116, pl.66 fig.1,
cf ------- Proshumardites cf. principalis.-Astachova: 117, pl.66 fig.2.
2007 Proshumardites principalis.-Kullmann in Kullmann et al.:139, fig.6a.

Fig. see TAX2255 A-B (sutures).

Holotype. PIN 455/28195