The oldest actinopterygian highlights the cryptic early history of the hyperdiverse ray-finned fishes by Lu, J, Giles, S, Friedman, M, Blaauwen, J, Zhu, M

“…Osteichthyans comprise two divisions, each containing over 32,000 living species [1]: Sarcopterygii (lobe-finned fishes and tetrapods) and Actinopterygii (ray-finned fishes). …”