Theraphosoidina
Theraphosoidina is a clade of avicularioid mygalomorph spiders first proposed by Robert J. Raven in 1985, based on a morphological cladistic analysis. Raven included three families: Theraphosidae, Paratropididae and Barychelidae. Subsequent molecular phylogenetic studies upheld the relationship between the Theraphosidae and Barychelidae, but found that Paratropidae fell outside the clade.
Taxonomy
Theraphosoidina was first proposed as a taxon by Robert J. Raven in 1985, based on a morphological cladistic analysis. Raven included three families: Theraphosidae, Paratropididae and Barychelidae. The group was characterized by the similar conformation of the male tibial spur, reduced toothing of the paired claws and many labial cuspules.Subsequent molecular phylogenetic studies upheld the relationship between the Theraphosidae and Barychelidae, but found that Paratropidae fell outside the clade. In 2012, it was suggested that Theraphosoidina should probably include an additional family of spiders related to Homostola. A major 2020 study of the Mygalomorphae established the new family Bemmeridae containing the two genera Homostola and Spiroctenus and included it within Theraphosoidina.