Abysm of Ages (Patreon)

It's kind of fascinating that, before the discovery of soft tissues indicated Ichthyosaurs had dorsal fins, Victorian depictions of the animal more or less resembled modern reconstructions of Mosasaurs, to which Ichthyosaurs aren't related, and predate evolutionarily by a few million years.

Modern reconstructions of Ichtyho (image two) and Mosasaur (image three) by Gabriel Ugueto

Species depicted: Nothosaurus, Ichthyosaurus, Plesiosaurus, Odontopteryx, Elasmosaurus, Rhamphorhynchus, Teleosaurus, whatever that little creature at the Ichthyo's flipper is meant to be