Platypterix venustulus
Kriwet, Nunn & Klug, 2009
Classification: Elasmobranchii Rajiformes incert. fam.
Reference of the original description
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
Description:
Citation: Platypterix venustulus Kriwet, Nunn & Klug, 2009: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026
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Description
Original diagnosis after Kriwet, Nunn & Klug, 2009 [3290]: As for genus: A rhinobatoid characterized by the following dental features: distinct sexual heterodonty present; teeth small, broader than deep with blunt transversal cutting edge; cutting edge of anterior teeth restricted to apex; tooth crowns completely smooth; labial crown face in profile view concave, well developed and overhanging the root; lingual crown face very abrupt; labial edge in occlusal view more or less regularly convex with obtuse angles; labial visor very broad and smooth; median uvula well developed; lateral uvulae almost completely reduced or absent; root slightly displaced lingually with an oblique labial edge in profile view and narrower than crown with flaring extremities; lingual root notch wide and deep; teeth of males with pointed cusp and vertical apex; tooth crowns of females more or less convex in lingual view with low and rounded apex.
Original diagnosis after Kriwet, Nunn & Klug, 2009 [3290]: As for genus: A rhinobatoid characterized by the following dental features: distinct sexual heterodonty present; teeth small, broader than deep with blunt transversal cutting edge; cutting edge of anterior teeth restricted to apex; tooth crowns completely smooth; labial crown face in profile view concave, well developed and overhanging the root; lingual crown face very abrupt; labial edge in occlusal view more or less regularly convex with obtuse angles; labial visor very broad and smooth; median uvula well developed; lateral uvulae almost completely reduced or absent; root slightly displaced lingually with an oblique labial edge in profile view and narrower than crown with flaring extremities; lingual root notch wide and deep; teeth of males with pointed cusp and vertical apex; tooth crowns of females more or less convex in lingual view with low and rounded apex.
References
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
DOI: 10.1111/j.1096-3642.2008.00439.x
Neoselachians (Chondrichthyes, Elasmobranchii) from the Lower and lower Upper Cretaceous of north-eastern Spain. Zoological Journal of the Linnean Society, 155(2), 316–347
DOI: 10.1111/j.1096-3642.2008.00439.x
