Reference
Luiz Felipe Moretti Iniesta, Rodrigo Salvador Bouzan, Antonio Domingos Brescovit (2023): A reassessment of the Neotropical genus Pseudonannolene Silvestri, 1895: cladistic analysis, biogeography, and taxonomic review (Spirostreptida: Pseudonannolenidae) – European Journal of Taxonomy – 0867: 1 - 312.