Platypterygius was one of the first ichthyosaurs to give birth to live pups, instead of laying eggs.

Platypterygius' name comes from its close-knit fin bones, which gave it a 'flat wing' to reduce water resistance.

Platypterygius gave birth to its young tail first, to prevent drowning during birthing.

Platypterygius is a dolphin-like ichtyosaur that roamed around the Eromanga Sea, currently inland Australia.