Dipteronotus
Dipteronotus is an extinct genus of marine stem-neopterygian ray-finned fish that existed during the Middle and Late Triassic epochs in what is now Europe and Morocco. As a typical feature, it had several ridge scales in front of its dorsal fin that created a spine-like structure.
Taxonomy
The following species are known:D. aculeatus - Early Anisian of FranceD. gibbosus Martin, 1980 - Carnian of Morocco D. cyphus Egerton, 1854 - Late Anisian of England D. olgiatii Tintori, 1990 - Late Ladinian of ItalyThe species D. ornatus Bürgin 1992 from the Besano Formation of Switzerland has been reassigned to the polzbergiid genus Stoppania.