Mandageria (Pronunciation: Man-daj-ee-ree-a fair-fax-i) is an extinct genus of lobe-finned fish. Mandageria lived in the Late Devonian period (Frasnian – Famennian). It is in related group with Hyneria, however, Mandageria was smaller, but probably it hunted in the same way.Mandageria has been named after the philanthropist James Fairfax, and the Mandagery Sandstone formation near Canowindra (Australia) in which the fossils were found.