Nanocetorhinus zeitlingeri

FEICHTINGER, POLLERSPÖCK & HARZHAUSER, 2020


Classification: Elasmobranchii incert. sedis incert. fam.

Reference of the original description
FEICHTINGER, I. & POLLERSPÖCK, J. & HARZHAUSER, M. (2020)
A new species of the enigmatic shark genus Nanocetorhinus (Chondrichthyes) from the Oligocene of Austria with palaeoceanographic implications. Austrian Journal of Earth Sciences, 113 (2): 229-236

Types
Nanocetorhinus zeitlingeri
Holotype: NHMW: 2019/0165/0030; Paratype: NHMW: 2019/0165/0029; NHMW: 2019/0165/0031;

Images of types

Description:


Citation: Nanocetorhinus zeitlingeri FEICHTINGER, POLLERSPÖCK & HARZHAUSER, 2020: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 06/2021

Please send your images of "Nanocetorhinus zeitlingeri" to info@shark-references.com

Nanocetorhinus zeitlingeri FEICHTINGER, POLLERSPÖCK & HARZHAUSER, 2020; Kamig quarry, Kriechbaum, Austria, Eferding Fm, Egerian, Chattian, holotype, NHMW/2019/0165/0030 © Iris Feichtinger, Wien

Distribution Geographic
Austria: Kamig quarry, Kriechbaum, Allerheiligen im Mühlkreis, Upper Austria

Distribution Strategraphy
Late Oligocene, Chattian: Eferding Formation

Description
Original diagnose after Feichtinger et al. (2020) p. 159 [29103]: Minute teeth with single cusp, not exceeding 1 mm in height. Irregular cutting edges not reaching the base of the cusp. Crown constricts from apex to base at two thirds of height of cusp, resulting in a spearhead-shaped crown morphology. Crown ending basally with basal collar as typical for genus. Labial crown face smooth with occasional enameloid protuberances situated near crown neck, where the cusp narrows. Lingual crown face strongly convex. Bi- or trilobate root with numerous, small foraminal openings piercing the tooth base.

Remarks
valid after Feichtinger et al. (2020) p. 230 [29103];



References
FEICHTINGER, I. & POLLERSPÖCK, J. & HARZHAUSER, M. (2020)
A new species of the enigmatic shark genus Nanocetorhinus (Chondrichthyes) from the Oligocene of Austria with palaeoceanographic implications. Austrian Journal of Earth Sciences, 113 (2): 229-236
DOI: 10.17738/ajes.2020.0014