Egertonodus duffini

Rees & Underwood, 2008


Classification: Elasmobranchii Hybodontiformes Hybodontidae

Reference of the original description
Rees, J. & Underwood, C.J. (2008)
Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic). Palaeontology, 51(1), 117–147

Types
Egertonodus duffini
Holotype: NHMUK: PV P 66479; Paratype: NHMUK: PV OR 35495;


Description:


Citation: Egertonodus duffini Rees & Underwood, 2008: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 11/2024

Please send your images of "Egertonodus duffini" to info@shark-references.com

Egertonodus duffinisp. nov. 4, holotype, P. 66479, anterior tooth-crown, labial view. 5, 28590a, anterior tooth-crown, labial view. 6, P. 2181, antero-lateral tooth-crown, labial view. 7, paratype, 35495, anterior tooth-crown, lingual view. 8, paratype, P. 66480, antero-lateral tooth-crown, labial view. 9, P. 5104, lateral tooth-crown, labial view. 10, 37750, anterior tooth-crown, labial view. All from Stonesfield Slate, Stonesfield; x 3. © Rees & Underwood, 2008

Description
Original diagnosis after Rees & Underwood (2008) [2555]: Large hybodont shark separated from all Hybodus and other Egertonodus species possessing high, multicuspid teeth by the following combination of dental characters: (1) anterior teeth with a high, slender, sigmoidally curved central cusp; (2) strong, somewhat labially displaced cutting edges and a flattened labial surface; (3) three pairs of widely spaced, high, slender lateral cusplets in anterior teeth.

Remarks
shark-references Species-ID=2083;
valid after Rees & Underwood (2008) p. 122 [2555];


References
Wills, S. & Bernard, E.L. & Brewer, P. & Underwood, C.J. & Ward, D.J. (2019)
Palaeontology, stratigraphy and sedimentology of Woodeaton Quarry (Oxfordshire) and a new microvertebrate site from the White Limestone Formation (Bathonian, Jurassic). Proceedings of the Geologists' Association, 130(2), 170–186
DOI: 10.1016/j.pgeola.2019.02.003
Rees, J. & Underwood, C.J. (2008)
Hybodont sharks of the English Bathonian and Callovian (Middle Jurassic). Palaeontology, 51(1), 117–147
DOI: 10.1111/j.1475-4983.2007.00737.x