Ctenacanthus ishii

KAPOOR & SAHNI, 1971


Classification: Elasmobranchii Ctenacanthiformes incert. fam.

Reference of the original description
KAPOOR, H.M. & SAHNI, A. (1971)
A Shark Tooth from Zewan Series of Guryul Ravine, Kashmir. Memoirs of the Faculty of Science, Kyoto University. Series of Geology and Mineralogy, 38 (1): 163-166

Types
Ctenacanthus ishii
Holotype: GSIK: 18510;


Description:


Citation: Ctenacanthus ishii KAPOOR & SAHNI, 1971: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 06/2021

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Description
Original diagnose after Kapoor & Sahni (1971) p. 164 [28543]: T he tooth with a central elevated cusp, oriented at right angle to the basal root plate; eight subsidiary cusps of which the extreme lateral pair is the largest (approximately 1/3 of central cusp) making an angle of 11 5° with the base; section of the central cusp oval in outline; root plate reniform in basal view, labial border almost straight and lingual side convex.

Remarks
valid after Kapoor & Sahni (1971) p. 164 [28543];


References
KAPOOR, H.M. & SAHNI, A. (1971)
A Shark Tooth from Zewan Series of Guryul Ravine, Kashmir. Memoirs of the Faculty of Science, Kyoto University. Series of Geology and Mineralogy, 38 (1): 163-166