Setting the record straight for fossil flying fishes versus non-flying ones: a comment on Xu et al . (2015)

Fossil flying fishes have been known for 150 years from the Upper Triassic of the Alps [[1][1]] and recently from the late Middle Triassic of China [[2][2]]. So far, five species belonging to Thoracopterus have been described and included in the Peltopleuriformes family Thoracopteridae [[2][2]]. Now