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(A–D) Rhyniognatha hirsti. (A) Old interpretation of mandibles, redrawn after Engel & Grimaldi (2004). (B) New interpretation of mandibles and possible maxillae in relative position. (C) Amended restoration (from Fig. 1E). (D) Further amended restoration, with supposed antennae (only outline, no subdivisions of flagellum) and compound eyes (from Scutigera coleoptrata photograph). (E) Leg of a representative of Crussolum (after Shear, Jeram & Selden, 1998).
