Onychodontida
| Onychodontida Temporal range: Late Silurian - Late Devonian |
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| Reconstruction of Onychodus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Subphylum: | Vertebrata |
| Infraphylum: | Gnathostomata |
| Superclass: | Osteichthyes |
| Class: | Sarcopterygii |
| Subclass: | Crossopterygii |
| Order: | †Onychodontiformes Andrews, 1973 |
| Family: | †Onychodontidae Woodward 1891 |
| Clades | |
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Onychodontida (= Onychodontiformes or Struniiformes) is an order of prehistoric sarcopterygian fish that lived between Late Silurian to Late Devonian period. The onychodontiformes are probably a paraphyletic group of basal sarcopterygians.
Based on a phylogram by Long, 2001, and Lu & Zhu, 2009 and presented in Mikko's Phylogeny Archive
?†Quebecius quebecensis Whiteaves 1889
?†Lukeus abudda Young & Schultze 2005
?†Bukkanodus jesseni Johanson et al. 2007
†S. rolandi Jessen 1966
†S. walteri (Gross 1936)
†Qingmenodus yui Lu & Zhu 2009
†Grossius aragonensis Schultze 1973
†O. anglicus Woodward 1888
†O. arcticus Woodward 1889
†O. hopkinsi Newberry 1857
†O. jaekeli Gross 1965
†O. jandemarrai Andrews et al. 2006
†O. obliquidentatus Jessen 1966
†O. ortoni Newberry 1889
†O. sigmoidesTNewberry 1857
†O. yassensis Lindley 2002
A new phylogenetic analysis of sarcopterygians, incorporating new fossils of Qingmenodus and neurocranial characters previously neglected, supported Onychodontiformes as stem-coelacanths within Actinistia.
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