R. Thomas Becker and Sven Hartenfels of the Westfälische Wilhelms-Universität, Münster, Germany, have kindly informed us that the name Palmatolepis nodosa (Klapper et al., Reference Klapper, Uyeno, Armstrong and Telford2004, p. 381) based on a Frasnian conodont species from northern Ontario is preoccupied. An earlier name, Palmatolepis marginifera nodosus, was established by Xiong (Reference Xiong1983, p. 313) based on a Famennian conodont subspecies from southwest China. Species and subspecies within the same genus are coordinate for the purposes of homonymy. Nor does it prevent homonymy that Xiong used a masculine ending for his subspecies, as it is automatically corrected to a feminine ending to agree with the gender of the genus name.

We propose Palmatolepis spallettae as the replacement name for the species we described from the Onakawana B Drillhole. The name honors Claudia Spalletta of the University of Bologna, Italy, for her many important contributions to Devonian and Carboniferous conodont biostratigraphy and taxonomy. The species occurs within Frasnian Zone 12 (Klapper et al., Reference Klapper, Uyeno, Armstrong and Telford2004, p. 375); this is the preferred zonal terminology used in that paper, as well as was formalized by Klapper and Kirchgasser (Reference Klapper and Kirchgasser2016).