Taxon - Odkazy a literatura
Alípio R. Benedetti and Ricardo Pinto-da-Rocha (2019): Description of Two New Species of Progonyleptoidellus (Opiliones: Gonyleptidae), with A Cladistic Analysis of the Genus, An Overview of Relationships in the K92 Group, and Taxonomic Notes on Deltaspidium, Zootaxa. 4691(5); 461–490 [jako Progonyleptoidellus picinguaba Benedetti & Pinto-da-Rocha, 2019]