Onychodontida
Encyclopedia
Onychodontida is a group of prehistoric fish. This order was it represents a small group of sarcopterygian
fishes that lived between Late Silurian
to Late Devonian period. The onychodontiformes are probably a paraphyletic group of basal sarcopterygians.
Sarcopterygii
The Sarcopterygii or lobe-finned fishes – sometimes considered synonymous with Crossopterygii constitute a clade of the bony fishes, though a strict classification would include the terrestrial vertebrates...
fishes that lived between Late Silurian
Silurian
The Silurian is a geologic period and system that extends from the end of the Ordovician Period, about 443.7 ± 1.5 Mya , to the beginning of the Devonian Period, about 416.0 ± 2.8 Mya . As with other geologic periods, the rock beds that define the period's start and end are well identified, but the...
to Late Devonian period. The onychodontiformes are probably a paraphyletic group of basal sarcopterygians.
Phylogeny
- Sarcopterygii
- DiabolepisDiabolepisDiabolepis is an extinct genus of sarcopterygian fish related to lungfishes which lived in the Early Devonian period of South China...
speratus - LangdeniaLangdeniaLangdenia is a genus of prehistoric lobe-finned fish....
campylognatha - MeemanniaMeemanniaMeemannia is a genus of extinct sarcopterygian fishes from the early Devonian period. It was found in Yunnan, China. As preserved, it consists mainly of skull roofing bones and a partial otic region of the braincase...
eos - PsarolepisPsarolepisPsarolepis is a genus of extinct lobe-finned fish which lived around 397 to 418 million years ago . Fossils of Psarolepis have been found mainly in South China and described by paleontologist Xiaobo Yu in 1998...
romeri - Onychodontida
- Diabolepis