DD1991 Posted August 31, 2021 The identity of this tooth as Asteracanthus is uncertain, because a new specimen of Asteracanthus ornatissimus from southern Germany (Stumpf et al. 2021) indicates that the synonymy of the Middle Jurassic genus Strophodus with Asteracanthus is untenable due to the teeth of the new Asteracanthus specimen having multicusped teeth, unlike the morphology of nominal Strophodus species, including the type species S. longidens. A newly described hybodontiform shark from the Kimmeridge Clay Formation, Durnonovariaodus, also has multicusped tooth. Stumpf, Sebastian; López‐Romero, Faviel A.; Kindlimann, René; Lacombat, Frederic; Pohl, Burkhard; Kriwet, Jürgen, 2021. A unique hybodontiform skeleton provides novel insights into Mesozoic chondrichthyan life. Papers in Palaeontology spp2.1350. doi:10.1002/spp2.1350. ISSN 2056-2799. Stumpf, S.; Etches, S.; Underwood, C. J.; Kriwet, J. (2021). Durnonovariaodus maiseyi gen. et sp. nov., a new hybodontiform shark-like chondrichthyan from the Upper Jurassic Kimmeridge Clay Formation of England. PeerJ. 9: e11362. doi:10.7717/peerj.11362. PMC 8121075. PMID 34026354. Link to comment
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