Species
Extinct

Ichthyosaurus trigonus

nomen dubium, species not entered Ichthyosaurus
Owen 1840
This taxon is considered nomen dubium, species not entered of the valid taxon Ichthyosaurus according to the Paleobiology Database. See the page for Ichthyosaurus
Bibliography
Original description
R. Owen. 1840. Report on British fossil reptiles. Report of the British Association for the Advancement of Science 8:43-126