Differs from Heterosalenia in having polyporous adoral ambulacral plating, slightly more rudimentary perforation of interambulacral tubercles and adapical interambulacral plates that lack a primary tubercle. Distinguished from Novasalenia, which also lacks aboral interambulacral tubercles, by its aboral trigeminate plate compounding; Novasalenia has strictly bigeminate plating.
Vadet (1999, p. 78) made Polysalenia the type of the family Pseudosaleniidae, and included here also Prosalenia and Heterosalenia. This encompassed all salenioids with a single suranal plate and perforate tubercles, a grade taxon.
Mortensen, T. 1932. On the Salenidae of the Upper Cretaceous deposits of Scania, southern Sweden. Geologiska Foreningen i Stockholm Forhandlingar 54, 471-497.
Vadet, A. 1999. La Classification des oursins reguliers du Lias et du Jura. Bulletin de la Societe academique du Boulonnais 4(3), 70-83.