Description
Original diagnosis after Marramà, Villalobos-Segura, Zorzin, Kriwet & Carnevale, 2023 [32008]: Stingray unique in having a peculiar combination of dasyatoid and myliobatoid traits. Like dasyatoids, †Dasyomyliobatis has a soft and flexible pectoral disc with convex anterior and posterior fin margins supported by catenated radials with no crossbracing; numerous (c. 40) labiolingually directed files of holaulacorhizous lateral teeth arranged in alternating rows; tail formed by free vertebrae not stiffened by a cartilaginous rod; caudal fin reduced to a ventral fold. Like myliobatoids, †Dasyomyliobatis shows a head protruding anterior to a wing-like pectoral disc; cephalic lobes contacting along their mesial edge forming a single, shovel-like structure; cephalic-lobe radials discontinuous with pectoral-fin radials; moderately enlarged hexagonal symphyseal/parasymphyseal polyaulacorhizous teeth in pavement-like arrangement, with bulbous/irregular interlocking mechanism, 3–4 wide-block and irregularly spaced root lobes. In addition, †Dasyomyliobatis has a pectoral-fin AR between 2.0 and 3.0, and positive FRD.

Remarks
shark-references Species-ID=16504;
type species of Dasyomyliobatis Marramà, Villalobos-Segura, Zorzin, Kriwet & Carnevale, 2023 [32008] by monotypy (Art. 68.3 ICZN);

References