New study identifies ancient shark ancestors

New research based on x-ray imaging provides the strongest evidence to date that sharks arose from a group of bony fishes called acanthodians. Analyzing an extraordinarily well-preserved fossil of an ancient sharklike fish, researchers identified it as an important transitional species that points to sharks as ancanthodians' living descendants. The work is published in the journal American Museum Novitates.

Read the whole article on Physorg

More from Physorg