Order Ricinulei Thorell 1876 (hooded tickspider)
Parent taxon: Arachnida according to M. S. Harvey 2003
Sister taxa: Acari, Anthracomartus, Araneae, Atocatle, Chelonethi, Opiliones, Pseudoscorpiones, Pseudoscorpionida, Solifugae, Tetrapulmonata, Trigonotarbida, Trigonotarbidae, Uraraneida
Subtaxa: Palaeoricinulei
Ecology: