Isurus retroflexus (Agassiz, 1843)

Höltke, Olaf, Salvador, Rodrigo B. & Rasser, Michael W., 2023, Trophic relationships in the Early Miocene Upper Marine Molasse of Baden-Württemberg, Southwest Germany, with special emphasis on the elasmobranch fauna, Palaeontologia Electronica (a 46) 26 (3), pp. 1-38 : 33

Isurus retroflexus (Agassiz, 1843)

Tooth type: Tearing with tendency towards the cutting type.

The genus level of this species is highly debated. A recent species with similar dental morphology is I. paucus Guitart-Manday, 1966 , which feeds primarily on schooling fishes and pelagic cephalopods (Ebert, 2003), having a TL of 4.5 (Froese and Pauly, 2019). The blade-like teeth of I. retroflexus , it might also feed on marine mammals. I. paucus is an epipelagic species that can be found from the surface to 1752 m deep (Compagno 1984; Ebert 2003; Ebert et al., 2021).