†order Heteropinnatoidea Appleby 1979 (diapsid)
Full reference: R. M. Appleby. 1979. The affinities of Liassic and later ichthyosaurs. Palaeontology 22(4):921-946
Parent taxon: Ichthyopterygia according to R. M. Appleby 1979
Sister taxa: Ekbainacanthus, Eoichthyosauria, Euichthyopterygia, Grippidia, Grippoidea, Ichthyoterus, Latipinnatoidea, Macropterygius, Mixosauroidea, Omphalosaurus merriami, Pachygonosaurus, Perrinosaurus, Rotundopteryx, Spitsbergenosaurus
Subtaxa: Leptopterygiidae Protoichthyosauridae
Ecology: nektonic carnivore
Distribution: there are no occurrences of Heteropinnatoidea in the database