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Species / Monocuphus Trochiformis
 Chenopus (Monocuphus) trochiformis Piette, 1876; Syntype A06272; Callovian, Jurassic; Chaumont, Haute-Marne, Champagne-Ardenne, France; Photo: Gaëlle Doitteau; Coll. MNHN; Copyright Museum national d'Histoire naturelle Paris  Chenopus (Monocuphus) trochiformis in Piette, 1876, Pl. 7, fig. 3, Pl. 34, fig. 6, 7 |