Kimmerobatis etchesi

Underwood & Claeson, 2017


Classification: Elasmobranchii Spathobatidae

Reference of the original description
Underwood, C.J. & Claeson, K.M. (2019)
The Late Jurassic ray Kimmerobatis etchesi gen. et sp. nov. and the Jurassic radiation of the Batoidea. Proceedings of the Geologists' Association, 130(3–4), 345–354

Types
Kimmerobatis etchesi
Holotype: EC: K874; Paratype: EC: K1894;


Description:


Citation: Kimmerobatis etchesi Underwood & Claeson, 2017: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2021

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Description
Original diagnose after Underwood & Claeson (2019) p. 346 [25550]: Batoid like Spathobatis (Thiollière, 1854) and Belemnobatis (Thiollière, 1854) characterised by “guitarfish” like form. Kimmer- obatis possesses a depressed body, caudal region large in proportion to disk, tail distinct from disk, fins aplesodic; hyomandibula with broad medial articulation with chondrocranium; unsegmented propterygia; no pectoral radials that articulate directly with scapulocoracoid between mesopterygium and metapterygium; synarcual short with vertebral centra nearly reaching neuro- cranium. Unlike Spathobatis, but like Belemnobatis, in having pectoral fins not extending to overlap pelvic fins and lacking enlarged placoid scales. Unlike Spathobatis and Belemnobatis in having subtriangular rostrum that fails to reach end of snout; no rostral appendix; incipient lingual uvula on teeth; post-pelvic process; neural spines of caudal region longer than centra; no fin spines; rugose axial cartilage of clasper.

Remarks
type species of Kimmerobatis Underwood & Claeson, 2019 p. 346 [25550] by original designation (Art. 68.2 ICZN);

valid after Underwood & Claeson (2019) p. 346 [25550];


References
Villalobos-Segura, E. & Underwood, C.J. (2020)
Radiation and divergence times of Batoidea. Journal of Vertebrate Paleontology, 40(3), Article e1777147
DOI: 10.1080/02724634.2020.1777147
Underwood, C.J. & Claeson, K.M. (2019)
The Late Jurassic ray Kimmerobatis etchesi gen. et sp. nov. and the Jurassic radiation of the Batoidea. Proceedings of the Geologists' Association, 130(3–4), 345–354
DOI: 10.1016/j.pgeola.2017.06.009