Biology:Kiangyousteus
| Kiangyousteus | |
|---|---|
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| Kiangyouosteus yohii fossil material | |
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †Arthrodira |
| Suborder: | †Brachythoraci |
| Family: | †Dunkleosteidae |
| Genus: | †Kiangyousteus Liu, 1955 |
| Type species | |
| Kiangyousteus yohii Liu, 1955
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Kiangyousteus is an extinct monotypic genus of dunkleosteid from the Middle Devonian: Givetian aged Guanwu Formation in the Sichuan province of south-western China . The type species, Kiangyousteus yohii, was the first known arthrodire from Asia.[1]
Etymology
Kiangyousteus is named after Jiangyou (formerly ‘Kiangyou’) district of Sichuan Province, the location where the fossils were found in 1953 by Professor S. H. Yoh of Peking University.[1]
Phylogeny
Kiangyousteus belongs to the family Dunkleosteidae. The phylogeny of Kiangyousteus can be shown in the cladogram below:[1]
| Dunkleosteoidea |
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Alternatively, the subsequent 2016 Zhu et al. study using a larger morphological dataset recovered Panxiosteidae well outside of Dunkleosteoidea, leaving the status of Dunkleosteidae as a clade grouping separate from Dunkleosteoidea in doubt, as shown in the cladogram below:[2]
| Dunkleosteoidea |
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References
- ↑ 1.0 1.1 1.2 You-An Zhu; Min Zhu (2013). "A redescription of Kiangyousteus yohii (Arthrodira: Eubrachythoraci) from the Middle Devonian of China, with remarks on the systematics of the Eubrachythoraci". Zoological Journal of the Linnean Society 169 (4): 798–819. doi:10.1111/zoj12089.
- ↑ Zhu, You-An; Zhu, Min; Wang, Jun-Qing (1 April 2016). "Redescription of Yinostius major (Arthrodira: Heterostiidae) from the Lower Devonian of China, and the interrelationships of Brachythoraci". Zoological Journal of the Linnean Society 176 (4): 806–834. doi:10.1111/zoj.12356. ISSN 0024-4082.
Wikidata ☰ Q20015232 entry
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