Requested reference
Hormiga, G. & Tu, L. (2008). On Putaoa, a new genus of the spider family Pimoidae (Araneae) from China, with a cladistic test of its monophyly and phylogenetic placement. Zootaxa 1792: 1-21. doi:10.11646/zootaxa.1792.1.1 -- Show included taxa