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Onychodontiformes Temporal range: Pragian–Famennian PreꞒ Ꞓ O S D C P T J K Pg N Possible Lochkovian record
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

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.

Phylogeny

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

References

1. ^ Mondéjar-Fernández, J. (2020). "A new onychodont (Osteichthyes; Sarcopterygii) from the Middle Devonian of Morocco and its bearing on early osteichthyan evolution". Journal of Systematic Palaeontology. 18 (7): 573–606. doi:10.1080/14772019.2019.1655495. S2CID 208586697.
2. Lu, J.; Zhu, M.; Ahlberg, P. E.; Qiao, T.; Zhu, Y.; Zhao, W.; Jia, L. (2016). "A Devonian predatory fish provides insights into the early evolution of modern sarcopterygians". Science Advances. 2 (6): e1600154. Bibcode:2016SciA....2E0154L. doi:10.1126/sciadv.1600154. PMC 4928971. PMID 27386576.

External links

• Onychodontiformes at Palaeos
• Onychodontida phylogeny at Mikko's Phylogeny Archive

v t e Evolution of fish
Fish Timeline of fish evolution
Forerunners	Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae? (†Haikouichthys, †Myllokunmingia) †Zhongxiniscus?
Jawless fish	Cyclostomata Hagfish Hyperoartia Lamprey †Conodonts †Protoconodonta? †Paraconodontida †Conodonta †Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci
Jawed fish	†Placoderms †Antiarchi †Arthrodira †Brindabellaspida †Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes Cartilaginous Elasmobranchii †Ctenacanthiformes †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †Symmoriiformes Chimaera Bony Lobe-finned †Onychodontiformes Coelacanth Rhipidistia †Porolepiformes Lungfish Tetrapodomorpha Ray-finned †"Palaeonisciformes" Cladistia Polypteriformes Chondrostei Acipenseriformes Neopterygii †Pycnodontiformes Halecomorphi Ginglymodi Teleost
Lists	Lists of prehistoric fish spiny sharks placoderms cartilaginous bony lobe-finned List of transitional fossils
Related	Prehistoric life Transitional fossils Vertebrate paleontology
† extinct

v t e Actinistia
Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Sarcopterygii Gnathostomata see Gnathostomata Actinistia see below↓ Actinistia
Actinistia sensu lato †Styloichthys? †"Onychodontiformes" Bukkanodus Grossius Luckeus Onychodus Qingmenodus Selenodus Strunius Actinistia sensu stricto †Eoactinistia †Euporosteus †Hainbergia †Nesides †Ngamugawi †Rebellatrix †Scleracanthus †Shoshonia †Styloichthys? †Youngichthys †Miguashaiidae Gavinia Miguashaia †Diplocercidae Chagrinia Dictyonosteus Diplocercides Serenichthys †Hadronectoridae Allenypterus Hadronector Holopterygius Lochmocercus Polyosteorhynchus †Rhabdodermatidae Caridosuctor Coelacanthopsis? Dumfregia Rhabdoderma Sassenia Spermatodus Synaptotylus †Laugiidae Belemnocerca Coccoderma Laugia Trachymetopon Coelacanthiformes †Coelacanthopsis? †Dobrogeria †Heptanema †Luopingcoelacanthus †Sinocoelacanthus †Yunnancoelacanthus †Coelacanthidae Axelia Chaohuichthys Coelacanthus Graphiuricthys Indocoelacanthus Moenkopia Mylacanthus Quayia Wimania †Whiteiidae Atacamaia Guizhoucoelacanthus Piveteauia Whiteia Latimerioidei †Garnbergia †Mawsoniidae Alcoveria Axelrodichthys Changxingia Chinlea Diplurus Graulia Lualabaea Mawsonia Parnaibaia Rhipis Latimeriidae †Foreyia †Holophagus Latimeria †Libys †Macropoma †Macropomoides †Megalocoelacanthus †Rieppelia †Swenzia †Ticinepomis †Undina

This article about a prehistoric lobe-finned fish is a stub. You can help Misplaced Pages by expanding it.

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• Onychodontida
• Prehistoric lobe-finned fish
• Prehistoric fish orders
• Devonian bony fish
• Early Devonian first appearances
• Famennian extinctions
• Paraphyletic groups
• Prehistoric lobe-finned fish stubs