FIGURE 5. Hypothesis O5 in Opiliones are no longer the same—on suprafamilial groups in harvestmen (Arthropoda: Arachnida)

FIGURE 5. Hypothesis O5 of phylogeny of the Opiliones (Pocock 1902). Pocock suggested a group formed by today's Phalangioidea + Ischyropsalidoidea, thus introducing the name and the concept of Apagosterni. Loman (1903) was the first to accept this clade, which alternately lost and regained favor, but endured for a century.