Alternative combination: Eurypterygius intermedius
Synonyms: Ichthyosaurus chiroparamecostinus Hawkins 1834, Ichthyosaurus chiroparamekostinus Hawkins 1834
Full reference: W. D. Conybeare. 1822. Additional notices on the fossil genera Ichthyosaurus and plesiosaurus. Transactions of the Geological Society of London, Series 2 1:103-123
Belongs to Ichthyosaurus according to M. W. Maisch 2010
Sister taxa: Ichthyosaurus acutirostris, Ichthyosaurus breviceps, Ichthyosaurus carinatus, Ichthyosaurus communis, Ichthyosaurus conybeari, Ichthyosaurus hercnyicus, Ichthyosaurus indicus, Ichthyosaurus latimanus, Ichthyosaurus platyodon, Ichthyosaurus polyptychodon, Ichthyosaurus rheticus, Ichthyosaurus trigonodon, Protoichthyosaurus prostaxalis, Protoichthyosaurus prosostealis
Ecology: nektonic carnivore