Order Araneida Clerck, 1757 - spiders Suborder Araneae Clerck, 1757 - tailless spiders Infraorder Opisthothelae Pocock, 1892 - unsegmented spiders Microorder Araneomorpha Smith, 1902 - araneomorphs Neocribellatae Caporiacco Dipneumonomorpha Entelegynae Simon, 1893 Male Pedipalpal Apophyses Branch RTA-"clade" RTA-clade 1 Fused Paracribellate subclade 2 Oval calamistrum subclade Polotow et al., 2015 3 Subclade Dionycha Petrunkevitch, 1928