Top Qs
Timeline
Chat
Perspective
Theraphosoidina
Clade of spiders From Wikipedia, the free encyclopedia
Remove ads
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.[1] Subsequent molecular phylogenetic studies upheld the relationship between the Theraphosidae and Barychelidae, but found that Paratropidae fell outside the clade.[2][3][4][5]
Remove ads
Taxonomy
Summarize
Perspective
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 (used in mating), reduced toothing of the paired claws and many labial cuspules.[1]
Subsequent molecular phylogenetic studies upheld the relationship between the Theraphosidae and Barychelidae, but found that Paratropidae fell outside the clade.[2][3] In 2012, it was suggested that Theraphosoidina should probably include an additional family of spiders related to Homostola.[4] A major 2020 study of the Mygalomorphae established the new family Bemmeridae (raised from the rank of tribe) containing the two genera Homostola and Spiroctenus and included it within Theraphosoidina.[5]
Phylogeny
An outline version of the preferred cladogram from a 2020 phylogenetic study of the Mygalomorphae is shown below. (A node with lower support is marked ♦.) Although the precise position of the Theraphosoidina clade varied in some of the individual analyses, the clade itself was well supported.[5]
| Avicularioidea |
| ||||||||||||||||||||||||
Families
According to Opatova et al. (2020), the clade includes the following families, one of which (Bemmeridae) was first described at this rank in their study:[5]
Remove ads
References
Wikiwand - on
Seamless Wikipedia browsing. On steroids.
Remove ads