The Caponioidea or caponioids are a group of

haplogyne The Haplogynae or haplogynes are one of the two main groups into which araneomorph spiders have traditionally been divided, the other being the Entelegynae. Morphological phylogenetic studies suggested that the Haplogynae formed a clade; more recen ...

araneomorph The Araneomorphae (also called the Labidognatha) are an infraorder of spiders. They are distinguishable by chelicerae (fangs) that point diagonally forward and cross in a pinching action, in contrast to the Mygalomorphae (tarantulas and their cl ...

spiders that have been treated as

superfamily SUPERFAMILY is a database and search platform of structural and functional annotation for all proteins and genomes. It classifies amino acid sequences into known structural domains, especially into SCOP superfamilies. Domains are functional, str ...

with two members, the

families Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideall ...

Caponiidae Caponiidae is a family of ecribellate haplogyne spiders that are unusual in a number of ways. They differ from other spiders in lacking book lungs and having the posterior median spinnerets anteriorly displaced to form a transverse row with the a ...

and

Tetrablemmidae Tetrablemmidae, sometimes called armored spiders, is a family of tropical araneomorph spiders first described by Octavius Pickard-Cambridge in 1873. It contains 126 described species in 29 genera from southeast Asia, with a few that occur in Afric ...

. Phylogenetic studies from 1991 onwards have shown that the group is not

monophyletic In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic gro ...

, being composed of two basal members of a larger

clade A clade (), also known as a monophyletic group or natural group, is a group of organisms that are monophyletic – that is, composed of a common ancestor and all its lineal descendants – on a phylogenetic tree. Rather than the English term, ...

. The precise members of that clade differ from study to study; one hypothesis is shown below.

References

{{reflist, refs= {{Citation , last=Coddington , first=Jonathan A. , year=2005 , editor-last=Ubick , editor-first=D. , editor2-last=Paquin , editor2-first=P. , editor3-last=Cushing , editor3-first=P.E. , editor4-last=Roth , editor4-first=V. , contribution=Phylogeny and classification of spiders , title=Spiders of North America: an identification manual , pages=18–24 , publisher=American Arachnological Society , access-date=2015-09-24 , contribution-url=https://repository.si.edu/bitstream/handle/10088/4365/CoddingtonSNAPhylogeny05.pdf , name-list-style=amp {{Citation , last1=Coddington , first1=Jonathan A. , last2=Levi , first2=Herbert W. , year=1991 , title=Systematics and evolution of spiders (Araneae) , journal=Annual Review of Ecology and Systematics , volume=22 , pages=565–592 , jstor=2097274 , name-list-style=amp , doi = 10.1146/annurev.es.22.110191.003025 {{Citation , last1=Dunlop , first1=Jason A. , last2=Penney , first2=David , year=2011 , editor-last=Zhang , editor-first=Z.-Q. , contribution=Order Araneae Clerck, 1757 , title=Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness (''Zootaxa'' 3148) , publication-place=Auckland, New Zealand , publisher=Magnolia Press , isbn=978-1-86977-850-7 , access-date=2015-10-31 , contribution-url=http://mapress.com/zootaxa/2011/f/zt03148p153.pdf , name-list-style=amp Historically recognized spider taxa Araneomorphae