Onychodontiformes (also known as Onychodontida and Struniiformes) is an order of prehistoric sarcopterygian fish that lived during the Devonian period.

The onychodontiforms are generally regarded as early-diverging members of the coelacanth lineage.

[2][1] The following cladogram is adapted from Mondéjar-Fernández (2020).

The study recovered Onychodontiformes as a paraphyletic group, which is shown in green:[1] Styloichthys Dipnomorpha Tetrapodomorpha Bukkanodus Selenodus Grossius Onychodus Qingmenodus Strunius Euporosteus Gavinia Miguashaia Diplocercides Latimeria

This article about a prehistoric lobe-finned fish is a stub.