Case 3546 Praeradiolites Douvillé, 1903 (Bivalvia, RADIOLITIDAE): proposed designation of Sphaerulites ponsiana d’Archiac, 1837 as the type species

The purpose of this application, under Article 81.1 of the Code, is to
conserve the usage of the generic name Praeradiolites Douvillé, 1902 by designation
of Sphaerulites ponsiana d’Archiac, 1837 as the type species. The current type species
of Praeradiolites, Radiolites fleuriausus d’Orbigny, 1842, has characteristic features of
Eoradiolites Douvillé, 1909 instead of Praeradiolites of current usage, and cannot be
used as the objective standard of reference for the application of the name
Praeradiolites. Maintaining the present situation would entail a series of disruptive
taxonomic changes and threaten stability. We propose the replacement of the type
species of Praeradiolites, which appears to be a less disruptive solution and may
better guarantee wide acceptance and stability.