Onychodontiformes

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]

Onychodontiformes Temporal range: Pragian–Famennian PreꞒ Ꞓ O S D C P T J K Pg N Possible Lochkovian record[1]
Reconstruction of Onychodus
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Sarcopterygii
Order:	†Onychodontiformes Andrews, 1973
Genera
†Bukkanodus Johanson et al., 2007 †Grossius Schultze, 1973 †Luckeus Young & Schultze, 2005 †Onychodus Newberry, 1857 †Qingmenodus Lu & Zhu, 2009 †Selenodus Mondéjar-Fernández, 2020 †Strunius Jessen, 1966

Phylogeny

The following cladogram is adapted from Mondéjar-Fernández (2020). The study recovered Onychodontiformes as a paraphyletic group, which is shown in green:^[1]

Crown-Sarcopterygii	Styloichthys Rhipidistia Dipnomorpha Tetrapodomorpha Bukkanodus Selenodus Grossius Onychodus Qingmenodus Strunius Actinistia Euporosteus Gavinia Miguashaia Diplocercides Latimeria Onychodontiformes