Full reference: V. Fischer, R. M. Appleby, D. Naish, J. Liston, J. B. Riding, S. Brindley, and P. Godefroit. 2013. A basal thunnosaurian from Iraq reveals disparate phylogenetic origins for Cretaceous ichthyosaurs. Biology Letters 98(4):20130021
Parent taxon: Ichthyosauria according to L. Campos et al. 2021
See also Fischer et al. 2013, Moon 2017 and Moon 2019
Sister taxa: Cetarthrosaurus, Ghuizhouichthyosaurus, Grippiidae, Guanlingichthyosaurus, Hueneosauria, Ichthyosauroidea, Ichthyosaurus australis, Ichthyosaurus polyptychodon, Ichthyosaurus strombecki, Isfjordosaurus, Latipinnatoidea, Longipinnatoidea, Mixosauria, Naanchangasaurus, Omphalosauridae, Parvinatatoridae, Parvipelvia, Pessosaurus, Proteosauridae, Quasianosteosauridae, Rachitrema, Shastosauroidea, Sphaerodontes, Stenopterygius grandis, Thaisauridae, Thunnosauria, Utatsusauridae
Subtaxa: Chacaicosaurus Ophthalmosauridae
Ecology: nektonic carnivore
Distribution:
• Cretaceous of Argentina (2 collections), Australia (22), Canada (4: Alberta, Northwest Territories, Saskatchewan), Chile (1), Colombia (2), France (13), Germany (6), India (2), New Zealand (1), Poland (2), the Russian Federation (10), Svalbard and Jan Mayen (1), Switzerland (1), the United Kingdom (14), United States (6: Kansas, Oregon, Texas, Wyoming), Venezuela (1)
• Jurassic to Cretaceous of Chile (1), the Russian Federation (1), the United Kingdom (1)
• Jurassic of Antarctica (1), Argentina (14), Canada (2: Northwest Territories), Cuba (1), France (3), Germany (2), Greenland (1), Italy (1), Madagascar (2), Mexico (4), Norway (4), Poland (1), the Russian Federation (15), the United Kingdom (10), United States (8: Alaska, Wyoming)
Total: 160 collections including 187 occurrences