Claim: Mandageria was a large predator fish with a torpedo-shaped body, large tail fins and pectoral fins, and a functional neck joint that lived during the Paleozoic period.
Evidence: Mandageria fairfaxi (Pronunciation: Man-daj-ee-ree-a fair-fax-i) is an extinct lobe-finned fish that lived during the Late Devonian period (Frasnian – Famennian). The Devonian (/dɪˈvoʊ.ni.ən, də-, dɛ-/ dih-VOH-nee-ən, də-, deh-) is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, 419.2 million years ago (Mya), to the beginning of the Carboniferous, 358.9 Mya. Mandageria was a large predator about 1.5 to 2 m (4.9 to 6.6 ft) long. It had a long torpedo-shaped body and large tail fins. Mandageria also had large pectoral fins which could have helped it manoeuvre around submerged logs when preparing to attack its prey. Mandageria had a functional neck joint, an otherwise uncommon feature among fish - Tiktaalik, Tarrasius, placoderms (esp.