divides the Tetrapulmonata into two clades, the Schizotarsata and the Serikodiastida. The Schizotarsata have walking legs II–IV with the tarsus having a...

Amblypygi – whip spiders Schizomida – short-tailed whipscorpions Uropygi – vinegaroons Serikodiastida †Idmonarachne †Uraraneida (extinct) Araneae – spiders...

lungs. The Tetrapulmonata divide into two main clades, one of which, Serikodiastida (Greek for "silk workers"), unites Uraraneida and Araneae (spiders)...

its overall morphology, Idmonarachne was considered to belong to the Serikodiastida, a clade of tetrapulmonate arachnids capable of making and using silk...

was likely sister group to the spiders, a clade which has been named Serikodiastida. Close relatives of the group survived through to the Cretaceous Period...

Uraraneida. Uraraneida and Araneida are grouped together in the clade Serikodiastida. Araneidae Wunderlich, J. (2015), "On the evolution and the classification...