Eoetmopterus davidi

Feichtinger, Pollerspöck, Harzhauser, Auer, Ćorić, Kranner & Guinot, 2022


Classification: Elasmobranchii Squaliformes Etmopteridae

Reference of the original description
Feichtinger, I. & Pollerspöck, J. & Harzhauser, M. & Auer, G. & Ćorić, S. & Kranner, M. & Guinot, G. (2023)
Shifts in composition of northern Tethyan elasmobranch assemblages during the last millennia of the Cretaceous. Cretaceous Research, 142, Article 105414

Types
Eoetmopterus davidi



Description:


Citation: Eoetmopterus davidi Feichtinger, Pollerspöck, Harzhauser, Auer, Ćorić, Kranner & Guinot, 2022: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 04/2024

No image available.
Please send your images of "Eoetmopterus davidi" to
info@shark-references.com

Description
Original diagnose after Feichtinger et al. (2022) [31181]: Minute, labio-lingually compressed teeth with a strong dignathic heterodonty not exceeding a mesio-distal width of 1 mm. Pronounced lingual root bulge in upper and lower jaw teeth. Labial crown face of all teeth flat with a broad apron overhanging the root. Upper jaw teeth with one main cusp and one pair of asymmetrical lateral cusplets of different height, elongated lingual bulge below the crown pierced by a central foramen. Root contour squared or distally rounded with a medio-lingual foramen and a nutritive groove. Lower jaw teeth monocuspid with short, stocky main cusp inclined distally. Mesial cutting edge sigmoid, distal cutting edge straight. Mesial root edge straight and displaced below the crown, rounded root contour on the distal edge. One central foramen situated on the bulge, one medio-lingual foramen is developed below and a nutritive groove occurs. Numerous labial foraminal openings follow the basal crown edge.

Remarks
shark-references Species-ID=16372;
valid after Feichtinger et al. (2022) [31181]

References
Feichtinger, I. & Pollerspöck, J. & Harzhauser, M. & Auer, G. & Ćorić, S. & Kranner, M. & Guinot, G. (2023)
Shifts in composition of northern Tethyan elasmobranch assemblages during the last millennia of the Cretaceous. Cretaceous Research, 142, Article 105414
DOI: 10.1016/j.cretres.2022.105414