Abstract
The recent publications of the sixth edition of the PhyloCode and of the monograph Phylonyms now allow the publication of nomenclatural acts that will establish priority under that code. This includes defining existing and newly proposed taxon names in conformity with the PhyloCode. Among amphibian taxa, very few names have been converted so far, and we take the opportunity of our recent phylogenetic analysis of neobatrachians focusing on an extinct genus of Pyxicephalidae, Thaumastosaurus, from the Eocene of Western Europe, to convert the names Pyxicephaloidea, Pyxicephalidae and Pyxicephalinae into phylogenetic nomenclature, following the PhyloCode rules.
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