(Solved): 11. Rhizodus was a 20 foot-long predatory fish that lived in lakes of the Late Carboniferous. It is ...

11. Rhizodus was a 20 foot-long predatory fish that lived in lakes of the Late Carboniferous. It is more closely related to humans than to ray-finned fish like trout. i) Would you expect the fin rays of this fish to attach to a bony trunk, or radially around a single cluster of bones? Explain. ii) The skeleton to the right belonged to a tetrapod from the Early Permian of Texas. Do you think it breathed using a buccal pump or an aspirational pump? Name two aspects of its skeleton that allow you to make an inference about its breathing mechanism.