Moskovirhynchus robustus
Popov & Shapovalov, 2021
Classification: Holocephali Chimaeriformes Callorhinchidae
Reference of the original description
A New Genus of Elephant Fish (Holocephali: Callorhinchidae) from the Late Jurassic of Central Russia. Paleontological Journal, 55(4), 410–420
A New Genus of Elephant Fish (Holocephali: Callorhinchidae) from the Late Jurassic of Central Russia. Paleontological Journal, 55(4), 410–420
Description:
Citation: Moskovirhynchus robustus Popov & Shapovalov, 2021: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 12/2024
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Moskovirhynchus robustus Popov & Shapovalov, 2021, Moscow, Kuntsevo; Upper Jurassic, middle Volgian, virgatus Zone © Evgeny Popov
Moskovirhynchus robustus Popov & Shapovalov, 2021, Moscow, Kuntsevo; Upper Jurassic, middle Volgian, virgatus Zone © Evgeny Popov
Description
Original diagnose after Popov & Shapovalov (2021) p. 412 (for the new genus) [30016]: (Based on the dental system; the asterisk (*) indicates apomorphic characters). Callorhinchid known from small-sized mandibular, palatine, and vomerine tooth plates. Field of basal perforation is well-developed on all tooth plates. Mandibular tooth plates have vascular tritors: the median tritor is wide, bifurcated, with a well-developed inner branch (*). The inner tritor is moderately developed. The outer tritor is narrow. Palatine tooth plates are robust and tall and have a greatly developed aboral part which is 1.5–2 times larger than the height of the oral part of the tooth plate; the single rounded inner tritor of vascular pleromin is displaced towards the symphyseal margin (*). Vomerine tooth plates are subtriangular, laterally compressed, with a well-developed symphysis which is occlusally rotated and forms a symphyseal crest in occlusion; tritors are absent (*)
Original diagnose after Popov & Shapovalov (2021) p. 412 (for the new genus) [30016]: (Based on the dental system; the asterisk (*) indicates apomorphic characters). Callorhinchid known from small-sized mandibular, palatine, and vomerine tooth plates. Field of basal perforation is well-developed on all tooth plates. Mandibular tooth plates have vascular tritors: the median tritor is wide, bifurcated, with a well-developed inner branch (*). The inner tritor is moderately developed. The outer tritor is narrow. Palatine tooth plates are robust and tall and have a greatly developed aboral part which is 1.5–2 times larger than the height of the oral part of the tooth plate; the single rounded inner tritor of vascular pleromin is displaced towards the symphyseal margin (*). Vomerine tooth plates are subtriangular, laterally compressed, with a well-developed symphysis which is occlusally rotated and forms a symphyseal crest in occlusion; tritors are absent (*)
Remarks
shark-references Species-ID=16160;
valid after Popov & Shapovalov, 2021 p. 414 [30016];
type species of Moskovirhynchus Popov & Shapovalov, 2021 p. 412 [30016] by original designation (Art. 68.2 ICZN);
shark-references Species-ID=16160;
valid after Popov & Shapovalov, 2021 p. 414 [30016];
type species of Moskovirhynchus Popov & Shapovalov, 2021 p. 412 [30016] by original designation (Art. 68.2 ICZN);
References
A New Genus of Elephant Fish (Holocephali: Callorhinchidae) from the Late Jurassic of Central Russia. Paleontological Journal, 55(4), 410–420
DOI: 10.1134/S0031030121040122
A New Genus of Elephant Fish (Holocephali: Callorhinchidae) from the Late Jurassic of Central Russia. Paleontological Journal, 55(4), 410–420
DOI: 10.1134/S0031030121040122
