RTA_clade

RTA clade

RTA clade

Clade of spiders

The RTA clade is a clade of araneomorph spiders, united by the possession of a retrolateral tibial apophysis – a backward-facing projection on the tibia of the male pedipalp.[1] The clade contains over 21,000 species, almost half the current total of about 46,000 known species of spider.[2] Most of the members of the clade are wanderers and do not build webs.[3] Despite making up approximately half of all modern spider diversity, there are no unambiguous records of the group from the Mesozoic and molecular clock evidence suggests that the group began to diversify during the Late Cretaceous.[4]

Quick Facts Scientific classification, Clades ...

Families

In 2005, Coddington included 39 families in a cladogram showing the RTA clade:[5]

References

  1. [1]
    Coddington, Jonathan A. & Levi, Herbert W. (1991), "Systematics and evolution of spiders (Araneae)", Annual Review of Ecology and Systematics, 22: 565–592, doi:10.1146/annurev.es.22.110191.003025, JSTOR 2097274
  2. [2]
    "Currently valid spider genera and species", World Spider Catalog, Natural History Museum Bern, retrieved 2015-10-14
  3. [3]
    Hormiga, Gustavo & Griswold, Charles E. (2014), "Systematics, Phylogeny, and Evolution of Orb-Weaving Spiders", Annual Review of Entomology, 59 (1): 487–512, doi:10.1146/annurev-ento-011613-162046, PMID 24160416
  4. [4]
    Magalhaes, Ivan L. F.; Azevedo, Guilherme H. F.; Michalik, Peter; Ramírez, Martín J. (February 2020). "The fossil record of spiders revisited: implications for calibrating trees and evidence for a major faunal turnover since the Mesozoic". Biological Reviews. 95 (1): 184–217. doi:10.1111/brv.12559. ISSN 1464-7931. PMID 31713947. S2CID 207937170.
  5. [5]
    Coddington, Jonathan A. (2005), "Phylogeny and classification of spiders" (PDF), in Ubick, D.; Paquin, P.; Cushing, P.E. & Roth, V. (eds.), Spiders of North America: an identification manual, American Arachnological Society, pp. 18–24, retrieved 2015-09-24
Stub icon

This article related to araneomorph spiders is a stub. You can help Wikipedia by expanding it.
Share this article:

This article uses material from the Wikipedia article RTA_clade, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.