Qingmenodus
Qingmenodus is a genus of prehistoric lobe-finned fish. Fossils of "Qingmenodus" were found in China and date back to the Early Devonian period. "Qingmenodus" reveals the first well-ossified otoccipital braincase in onychodonts. Palaeontologists believe that "Qingmenodus" was one of the oldest onychodont fish. Relationships. A study of additional new fossils of "Qingmenodus" in a larger phylogenetic analysis of Sarcopterygii including new neurocranial characters supported placing onychodontiforms as stem-coelacanths, within Actinistia.