Fig. 10From: A new cochliodont anterior tooth plate from the Mississippian of Alabama (USA) having implications for the origin of tooth plates from tooth filesSyntype of Deltodopsis? convexus, USNM V13015. Here designated as Arcuodus bialveatus, comb. nov. a Occlusal view. Lingual end to right. Scale bar = 5 mm. b Lateral view. Lingual end to right. Millimeters scale divisions. Drawings of this specimen were published as St. John and Worthen, 1883 ([31], pl. 11, fig. 17). Images copyrighted, Smithsonian Institution, all rights reservedBack to article page