The discovery of two Early Devonian osteichthyan (bony fish) fossils1,2,3,4 has challenged established ideas about the origin of osteichthyans and their divergence into actinopterygians (teleosts ...

Fossilized footprints of sarcopterygii (or walking fish) estimated to be over 360 million years old. Kirsten Murphy · CBC News · Posted: Apr 07, 2018 6:00 AM EDT | Last Updated: April 10, 2018.