Genus: Platypterygius HUENE, 1922
Etymology: Greek, platys, “broad” and Greek, pteryion, “fin” + us”: Broad fin.
= Subgenus: Platypterygius ARKHANGELSKY, 1998

Species: platydactylus (BROILI, 1907) HUENE, 1922
Etymology: Greek, platy, "broad, flat, wide" and Greek, dactylos, “finger.”
= Ichthyosaurus platydactylus BROILI, 1907
= Ichthyosaurus (Platypterygius) platydactylus (BROILI, 1907) KUHN, 1946
= Platypterygius (Platypterygius) platydactylus (BROILI, 1907) ARKHANGELSKY, 1998

Holotype:

Locality: Ricklinger Moor near Hannover, Saschen (Saxony) State, Germany.

Horizon:

Biostratigraphy:

Age: Aptian Stage, Lower Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Fragmentary skull and fragmentary skeleton.
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