Fig. 3 in Devonian pearls and ammonoid-endoparasite co-evolution

Fig. 3. "Housean pits" type 1. A. Sellanarcestes ebbighauseni Klug, 2002, GPIT 1871−171, Sellanarcestes wenkenbachi Zone, Emsian, northern Jebel Amessoui, Tafilalt, Morocco, from Klug (2002); in ventral (A1) and lateral (A2) views. B. Sellanarcestes cf. ebbighauseni Klug, 2002, PIMUZ 28582, Sellanarcestes wenkenbachi Zone, Emsian, Jebel Ouaoufilal, Tafilalt, Morocco; in lateral (B1) and ventral (B2) views. C. Large pits in Anarcestes sp., PIMUZ 28581, late Emsian, Jebel Mech Agrou, Tafilalt, Morocco; in lateral (C1) and ventral (C2) views. All specimens coated with NH4Cl.