Creatures that give medium eggs,

Ankylosaurus, Archelon, Baryonyx, Carbonemys, Carno, Dimetrodon, Diplo, ichthyornis, Iguanodon, Kaprosuchus, Kentrosaurus, Pachyrhinosaurus, Pelagornis, Pulmonosocorpius, Sarco, Stegosaurus, Terror Bird, Thorny Dragon, Troodon, Velonasaur,