Open main menu

The Arthromygalidae are an extinct family of arachnids, possibly spiders. Fossils placed in the family were all found in the Carboniferous, 359 to 299 million years ago. They were considered by Alexander Petrunkevitch to be "mesotheles", i.e. placed in the spider suborder Mesothelae.[1] Petrunkevitch used the family for Carboniferous fossils he regarded as mesotheles but which lacked eyes (those with eyes were placed in the Arthrolycosidae).[2] Paul A. Selden has shown the fossil specimens only have "the general appearance of spiders", with segmented abdomens (opisthosomae), but no definite spinnerets.[3]

Scientific classification edit
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae (?)
Family: Arthromygalidae
Petrunkevitch, 1923[1]


Genera placed in the Arthromygalidae as of 2015 are shown below, together with the location of the fossils.[1]


  1. ^ a b c Dunlop, J.A.; Penney, D.; Jekel, D. (2015). "A summary list of fossil spiders and their relatives" (PDF). World Spider Catalog. Natural History Museum Bern. Retrieved 2016-03-18.
  2. ^ Selden, Paul A.; Shcherbakov, Dmitry E.; Dunlop, Jason A. & Eskov, Kirill Yu. (2013), "Arachnids from the Carboniferous of Russia and Ukraine, and the Permian of Kazakhstan", Paläontologische Zeitschrift, 88 (3): 297–307, doi:10.1007/s12542-013-0198-9
  3. ^ Selden, P.A. (1996), "First fossil mesothele spider from the Carboniferous of France" (PDF), Revue suisse de Zoologie, hors série: 585–596, retrieved 2016-03-18