non1923  Platyclymenia Quenstedti var. crassa Schindewolf: 458, text-fig.19b,
         ----  Platyclymenia crassa Schindewolf: 458, text-fig.19c  [homonym of P. quenstedti crassa].
     1924  Platyclymenia crassa.-Schindewolf: 100.
     1929  ?Cycloclymenia costata Lange: 63, pl.2 fig.14.
     1934  Platyclymenia (Pleuroclymenia) crassa.-Schindewolf: 343.
     1938  Platyclymenia (Pleuroclymenia) crassa.-Miller: 195, pl.39 fig.17.
     1955  Platyclymenia (Pleuroclymenia) crassissima  Schindewolf: 419 [nom.van.].
     1956  Platyclymenia (Pleuroclymenia) crassima Müller: 69  [nom.van.].
     1968  Platyclymenia annulata var. densicosta.-Staschen: 42, fig.13A, 13B.
     1982  Platyclymenia (Pleuroclymenia) crassissima.-Price [unpubl.]: 249, pl.5.16 fig.2, 3, 10.
     2000  Pleuroclymenia costata.-Becker: 49, fig.10 d, pl.1 fig.10-14.
     2002  Pleuroclymenia costata.-Korn & Klug: 239, fig.208, A, F.
     2002  Pleuroclymenia costata.-Korn: 598, fig.39-42.
     2005  Pleuroclymenia costata.-Nikolaeva & Bogoslovskii: 82, pl.6 fig.5-6, text-fig.19.

Fig. see TAX529 D (suture). Fig.TAX559 (cross-section).