Rhizodus is an extinct genus of basal, finned tetrapodomorphs. It belonged to Rhizodontida, one of the earliest-diverging tetrapodomorph clades. Two valid species have been described, both of which lived during the Early Carboniferous epoch, living between 300 and 330 million years ago. It was even bigger than the beluga sturgeon, making it the largest freshwater fish to have ever existed. Carbon-dated fossils show that Rhizodus went extinct a mere 8,000 years ago.
Rhizodus has been suggested to play 5 roles. Click below to see other actors suggested for each role, and vote for who you think would play the role best.
