Fig. 1. Mesozoic thylacocephalans. A–C. Dollocaris ingens Van Straelen, 1923 in The Early Cambrian origin of thylacocephalan arthropods

Fig. 1. Mesozoic thylacocephalans. A–C. Dollocaris ingens Van Straelen, 1923, Callovian, La Voulte, France. FSL 170759, general view (A1) and detail (A2) of visual surface. B. Three−dimensionally preserved specimen showing a pair of bulbous eyes, in left lateral (B1) and frontal (B2) views (collection of the Musée d'Histoire Naturelle, Lyon, specimen number in−progress). C. IPM R 62002, specimen showing well−preserved raptorial appendages. D. Mayrocaris bucculata Polz, 1994, general view of paratype (specimen 93032701 from Polz 1994: pl. 1: 3, courtesy S. Secrétan).