Alternative combinations: Stenopterygius acutirostris, Temnodontosaurus acutirostris
Synonym: Ichthyosaurus microdon Wagner 1851
Full reference: R. Owen. 1840. Report on British fossil reptiles. Report of the Ninth Meeting of the British Association for the Advancement of Science, Reports on the State of Science 43-126
Belongs to Ichthyosaurus according to M. W. Maisch 2010
Sister taxa: Ichthyosaurus breviceps, Ichthyosaurus carinatus, Ichthyosaurus communis, Ichthyosaurus conybeari, Ichthyosaurus entheciodon, Ichthyosaurus enthekiodon, Ichthyosaurus hercnyicus, Ichthyosaurus indicus, Ichthyosaurus intermedius, Ichthyosaurus latimanus, Ichthyosaurus platyodon, Ichthyosaurus polyptychodon, Ichthyosaurus rheticus, Ichthyosaurus tenuirostris, Ichthyosaurus trigonodon, Protoichthyosaurus prostaxalis, Protoichthyosaurus prosostealis
Ecology: nektonic carnivore