Desinia radiata
Ivanov, Kovalenko, Murashev & Podurets, 2022
Classification: Elasmobranchii incert. sedis Sphenacanthidae
Reference of the original description
Euselachian Sharks (Elasmobranchii, Chondrichthyes) from the Middle and Late Permian of European Russia. Paleontological Journal, 56(11), 1372–1384
Euselachian Sharks (Elasmobranchii, Chondrichthyes) from the Middle and Late Permian of European Russia. Paleontological Journal, 56(11), 1372–1384
Description:
Citation: Desinia radiata Ivanov, Kovalenko, Murashev & Podurets, 2022: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 08/2026
Description
Original diagnosis after Ivanov, Kovalenko, Murashev & Podurets, 2023 [31669]: Teeth of small to medium size, with pyramidal protacrodont crown inclined lingually, with convex labial and lingual faces; conical, orthodont cusps from three to eight with fused bases and separated by deep depressions, gradually decreasing from central to terminal lateral ones; cusp sculpture from coarse ridges radially diverging from the apex, branched at the base; arched base extended lingually, semicircular or round shape, with longitudinal depression on the basal side and labio-basal torus; slightly branched dentine tubules arranged in bundles; vascular network occupying the entire base, with horizontal canals of same width; long longitudinal canals connecting the cusp pulp canals.
Original diagnosis after Ivanov, Kovalenko, Murashev & Podurets, 2023 [31669]: Teeth of small to medium size, with pyramidal protacrodont crown inclined lingually, with convex labial and lingual faces; conical, orthodont cusps from three to eight with fused bases and separated by deep depressions, gradually decreasing from central to terminal lateral ones; cusp sculpture from coarse ridges radially diverging from the apex, branched at the base; arched base extended lingually, semicircular or round shape, with longitudinal depression on the basal side and labio-basal torus; slightly branched dentine tubules arranged in bundles; vascular network occupying the entire base, with horizontal canals of same width; long longitudinal canals connecting the cusp pulp canals.
Remarks
shark-references Species-ID=16440;
type species of Desinia Ivanov, Kovalenko, Murashev & Podurets, 2023 [31669] by monotypy (Art. 68.3 ICZN);
shark-references Species-ID=16440;
type species of Desinia Ivanov, Kovalenko, Murashev & Podurets, 2023 [31669] by monotypy (Art. 68.3 ICZN);
References
Euselachian Sharks (Elasmobranchii, Chondrichthyes) from the Middle and Late Permian of European Russia. Paleontological Journal, 56(11), 1372–1384
DOI: 10.1134/s0031030122110065
Euselachian Sharks (Elasmobranchii, Chondrichthyes) from the Middle and Late Permian of European Russia. Paleontological Journal, 56(11), 1372–1384
DOI: 10.1134/s0031030122110065
