†Streptospondylus rostromajor Saint-Hilaire 1825
Alternative combination: Steneosaurus rostromajor
Belongs to Streptospondylus according to R. Owen 1842
Sister taxon: Streptospondylus altdorfensis
Type specimen: Its type locality is Vaches Noires cliffs, near Honfleur, which is in a Callovian/Oxfordian marine marl in France