Order Araneida Clerck, 1757 - spiders Suborder Araneae Clerck, 1757 - tailless spiders Infraorder Opisthothelae Pocock, 1892 - unsegmented spiders Microorder Mygalomorpha Pocock, 1892 - mygalomorphs see [unranked] Mygalomorphae Pocock, 1892 Family Atracidae Hogg, 1901 Genus †Alioatrax Wunderlich, 2017 †Alioatrax incertus Wunderlich, 2017