Species
Extinct

Macropterygius trigonus

subjective synonym of Aegirosaurus leptospondylus
(Owen 1840)
This taxon is considered subjective synonym of of the valid taxon Aegirosaurus leptospondylus according to the Paleobiology Database. See the page for Aegirosaurus leptospondylus →
Bibliography
Original description
R. Owen. 1840. Report on British fossil reptiles. Report of the British Association for the Advancement of Science 8:43-126