Chondrichthyes - Lamniformes - Paraisuridae
Full reference: J. Herman. 1979. Reflexions sur la systematique des Galeoidei et sur les affinities du genre Cetorhinus a l'occasion de la decouverte d'elements de la denture d'un exemplaire fossile dans les Sabels du Kattendijk a Kallo (Pliocene Inferieur, Belgique. Annales de la Société Géologique de Belgique 102:357-377
Parent taxon: Lamniformes according to M. Siversson and M. Machalski 2017
Sister taxa: Acutalamna, Alopiidae, Anacoracidae, Aquilolamnidae, Archaeolamnidae, Carchariidae, Carchariolamna, Cardabiodontidae, Cetorhinidae, Cretoxyrhinidae, Dallasiella, Eoptolamnidae, Haimirichiidae, Hybodus dispar, Lamna (Odontaspis) ornata, Lamnidae, Megachasmidae, Mitsukurinidae, Odontaspididae, Otodontidae, Palaeocarcharias, Pseudocarcharidae, Pseudocarchariidae, Pseudocoracidae, Pseudoisurus, Pseudoisurus tomosus, Pseudoscapanorhynchidae, Ptychodontidae, Serratolamnidae, Truyolsodontidae, Xiphodolamiidae
Subtaxa: Paraisurus
Ecology: nektonic carnivore
Distribution:
• Cretaceous of Australia (1 collection), France (3), Kazakhstan (1), Lithuania (1), Poland (1), the Russian Federation (2), Ukraine (1), the United Kingdom (1), United States (2: Texas), Uzbekistan (2)
Total: 15 collections each including a single occurrence