Pseudocorax duchaussoisi

Guinot, Underwood, Cappetta & Ward, 2013


Classification: Elasmobranchii Lamniformes Pseudocoracidae

Reference of the original description
Guinot, G. & Underwood, C.J. & Cappetta, H. & Ward, D.J. (2013)
Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11(6), 589–671

Types
Pseudocorax duchaussoisi
Holotype: USTL: JUH2-30;


Description:


Citation: Pseudocorax duchaussoisi Guinot, Underwood, Cappetta & Ward, 2013: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 02/2023

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Description
Original diagnose after Guinot et al. (2013) p. 628 [24889]: Teeth up to 7 mm high and 5 mm wide with high degree of monognathic heterodonty. Triangular cusp erect in anterior teeth, slightly bent distally in anterolateral to strongly inclined in lateral teeth. Convex lingual face of the cusp, flat labial face. Anterior teeth with low and bulky holaulacorhize root; marked lingual protuberance; root depressed labially, overhung by a slight labial bulge; short root branches. Anterolateral teeth with betterdeveloped lateral heels and root branches, both oblique in themesial region. Lateral teeth asymmetrical and mesiodistally expanded; horizontal and short distal heel and root branch separated from the cusp by a concavity; elongate and slender mesial heel and root branch; rectilinear basal edge of the branches; depressed labial root face overhung by the crown.

Remarks
valid after Guinot et al. (2013) p. 628 [24889];


References
Condamine, F.L. & Romieu, J. & Guinot, G. (2019)
Climate cooling and clade competition likely drove the decline of lamniform sharks. Proceedings of the National Academy of Sciences of the United States of America, 116(41), 20584–20590
DOI: 10.1073/pnas.1902693116
Guinot, G. & Underwood, C.J. & Cappetta, H. & Ward, D.J. (2013)
Sharks (Elasmobranchii: Euselachii) from the Late Cretaceous of France and the UK. Journal of Systematic Palaeontology, 11(6), 589–671
DOI: 10.1080/14772019.2013.767286
Guinot, G. (2013)
Regional to global patterns in Late Cretaceous selachian (Chondrichthyes, Euselachii) diversity. Journal of Vertebrate Paleontology, 33(3), 521–531
DOI: 10.1080/02724634.2013.740116
Guinot, G. (2013)
Late Cretaceous elasmobranch palaeoecology in NW Europe. Palaeogeography, Palaeoclimatology, Palaeoecology, 388, 23–41
DOI: 10.1016/j.palaeo.2013.07.027