Rosenberg, Gary; Petit, Richard E. H. (1987). Ryckholt's Mélanges Paléontologiques, 1851-1862, with a new name for Tudicula H. & A. Adams, non Ryckholt. Proceedings of the Academy of Natural Sciences of Philadelphia. 139: 53-64.
Rosenberg, Gary; Petit, Richard E. H
Ryckholt's <i>Mélanges Paléontologiques</i>, 1851-1862, with a new name for <i>Tudicula</i> H. & A. Adams, non Ryckholt
Proceedings of the Academy of Natural Sciences of Philadelphia
Ryckholt's little known and seldom cited Mélanges Paléontologiques is discussed and dated. His names for invertebrate taxa of generic rank, most of which are mollusks from the Devonian, Carboniferous, and Cretaceous of Belgium, are discussed and shown to be available. The genus Tudivasum nom. nov. (Gastropoda: Turbinellidae: Vasinae) is proposed to replace Tudicula H. & A. Adams 1864, which is preoccupied by Tudicula Ryckholt 1862. The resulting new combinations are listed. This replacement eliminates the confusion of Tudicula H. & A. Adams with Tudicla Röding 1798, which is also in the Turbinellidae.