Heterotrypa Nicholson, 1879, and Peronopora Nicholson, 1881 (Bryozoa): designation of type-species under the plenary powers
International Commission on Zoological Nomenclature
Article
1968
The Bulletin of zoological nomenclature
24
335--336
BioStor
London International Trust for Zoological Nomenclature
BioStor: https://biostor.org/reference/1710