Eoetmopterus davidi
Feichtinger, Pollerspöck, Harzhauser, Auer, Ćorić, Kranner & Guinot, 2022
Classification: Elasmobranchii Squaliformes Etmopteridae
Reference of the original description
Shifts in composition of northern Tethyan elasmobranch assemblages during the last millennia of the Cretaceous. Cretaceous Research, 142, Article 105414
Shifts in composition of northern Tethyan elasmobranch assemblages during the last millennia of the Cretaceous. Cretaceous Research, 142, Article 105414
Types
Eoetmopterus davidi
Holotype: NHMW: 2022/0150/0005; Paratype: NHMW: 2022/0150/0001; NHMW: 2022/0150/0002; NHMW: 2022/0150/0003; NHMW: 2022/0150/0004; NHMW: 2022/0150/0006;
Eoetmopterus davidi
Holotype: NHMW: 2022/0150/0005; Paratype: NHMW: 2022/0150/0001; NHMW: 2022/0150/0002; NHMW: 2022/0150/0003; NHMW: 2022/0150/0004; NHMW: 2022/0150/0006;
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 08/2025
Material
three upper and seven lower jaw teeth. NHMW/2022/0150/0001-0007, NHMW/2022/0151/0001 [31181]
three upper and seven lower jaw teeth. NHMW/2022/0150/0001-0007, NHMW/2022/0151/0001 [31181]
Description
Original diagnosis 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.
Original diagnosis 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.
References
Der Haunsberg – Neue Forschungsergebnisse von einer bedeutenden Fossilfundstelle. Jahresbericht 2024 und Mitteilungen Der Freunde der Bayerischen Staatssammlung für Paläontologie und Historische Geologie München e.V., 53, 61–72
Bioluminescence and repeated deep-sea colonization shaped the diversification and body size evolution of squaliform sharks. Proceedings of the Royal Society B-Biological Sciences, 292(2042), Article 20242932
DOI: 10.1098/rspb.2024.2932
Haie und Rochen an der Kreide-Paläogen-Grenze. Fossilien, 3/2024, 48–57
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

Der Haunsberg – Neue Forschungsergebnisse von einer bedeutenden Fossilfundstelle. Jahresbericht 2024 und Mitteilungen Der Freunde der Bayerischen Staatssammlung für Paläontologie und Historische Geologie München e.V., 53, 61–72

Bioluminescence and repeated deep-sea colonization shaped the diversification and body size evolution of squaliform sharks. Proceedings of the Royal Society B-Biological Sciences, 292(2042), Article 20242932
DOI: 10.1098/rspb.2024.2932

Haie und Rochen an der Kreide-Paläogen-Grenze. Fossilien, 3/2024, 48–57
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