Skeletal convergence in thunniform sharks, ichthyosaurs, whales, and tunas, and its possible ecological links through the marine ecosystem evolution
Abstract Tunas, lamnid sharks, modern whales, and derived ichthyosaurs swisse high strength magnesium powder berry converged on the thunniform body plan, with a fusiform body, lunate caudal fin, compressed peduncle, and peduncle joint.This evolutionary convergence has been studied for a long time but little is known about whether all four clades sh