Tubonasus (meaning “tube nose”) is an extinct monospecific genus of long-snouted[1] arthrodire placoderm from the Early Frasnian stage of the Late Devonian period, found at the Gogo Formation of Kimberley, Western Australia.
| Tubonasus Temporal range: Late Devonian: Frasnian,
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | †Arthrodira |
| Suborder: | †Brachythoraci |
| Family: | †Camuropiscidae |
| Genus: | †Tubonasus Dennis and Miles, 1979 |
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Tubonasus is interpreted as a pelagic pursuit predator, and had the ability of swallowing prey whole. Like other camuropiscids, it has an elongated rostrum, streamlined body, and narrow infragnathals.[2]
Phylogeny edit
Tubonasus is a member of the family Camuropiscidae under the superfamily Incisoscutoidea, which belongs to the clade Coccosteomorphi, one of the two major clades within Eubrachythoraci.[3][4] The cladogram below shows the phylogeny of Tubonasus:[4]
References edit
- ^ Dennis, K.; Miles, R. S. (1979). "Eubrachythoracid arthrodires with tubular rostral plates from Gogo, Western Australia". Zoological Journal of the Linnean Society. 67 (4): 297–328. doi:10.1111/j.1096-3642.1979.tb01118.x.
- ^ Trinajstic, Kate; Briggs, Derek E. G.; Long, John A. (2022). "The Gogo Formation Lagerstätte: A view of Australia's first great barrier reef". Journal of the Geological Society. 179. doi:10.1144/jgs2021-105. S2CID 243284735.
- ^ 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.
- ^ a b 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.
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