Coccosteina

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Coccosteina
Temporal range: Devonian
C cuspidatus.png
Artist's reconstruction of Coccosteus cuspidatus
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Placodermi
Order: Arthrodira
Suborder: Brachythoraci
Infraorder: Coccosteina
Heintz, 1932
Superfamilies

See text

Coccosteina is an extinct infraorder of placoderms, armored fish most diverse during the Devonian. [1] However, the term is no longer in use, as modern cladistical methods have produced alternative phylogenetic trees of Brachythoraci with new subdivisions. [2] [3] [4]

Systematics

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<span class="mw-page-title-main">Brachythoraci</span> Extinct suborder of fishes

Brachythoraci is an extinct suborder of arthrodire placoderms, armored fish most diverse during the Devonian.

<span class="mw-page-title-main">Dinichthyloidea</span>

The Dinichthyloidea is an extinct superfamily of placoderms, armored fish most diverse during the Devonian. However, the term is no longer in use, as modern cladistical methods have produced alternative phylogenetic trees of Brachythoraci with new subdivisions.

<span class="mw-page-title-main">Dunkleosteidae</span> Extinct family of fishes

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<i>Rolfosteus</i>

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<i>Plourdosteus</i> Extinct genus of fishes

Plourdosteus is an extinct genus of placoderm arthrodire which was relatively widespread in Euramerica during the Givetian to Frasnian ages of the Devonian. It was a small placoderm, with P. canadensis specimen MNHM 2-177 measuring 37.5 cm (14.8 in) long.

<i>Mcnamaraspis</i> Extinct genus of fishes

Mcnamaraspis is an extinct monospecific genus of arthrodire placoderm that inhabited the ancient reef system of north Western Australia during the Frasnian epoch of the Late Devonian period. The type specimen was found and described by John A. Long from the Gogo Formation near Fitzroy Crossing. This fossil fish showed new anatomical features in arthrodires, like the well-preserved annular (ring-shaped) cartilages of the snout, previously inferred to be present by Erik Stensiö of Sweden. It is occasionally referred to as "The Gogo Fish" after the locale the holotype was excavated from.

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<i>Camuropiscis</i>

Camuropiscis is an extinct genus of arthrodire placoderm from the Early Frasnian stage of the Late Devonian period, found at the Gogo Formation of Kimberley, Western Australia. The species of Camuropiscis had a flattened, elongated snout that may have aided in enhancing its hydrodynamic streamlining.

<i>Latocamurus</i>

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<span class="mw-page-title-main">Dunkleosteoidea</span> Extinct superfamily of fishes

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<span class="mw-page-title-main">Eubrachythoraci</span> Extinct suborder of fishes

Eubrachythoraci is an extinct clade of arthrodire placoderms within the suborder Brachythoraci, armored fish most diverse during the Devonian. Most are considered to be pelagic long-distance swimmers, leading to their widespread distribution beginning from at least the Middle Devonian period.

<span class="mw-page-title-main">Pachyosteomorphi</span> Extinct suborder of fishes

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Compagopiscis is an extinct genus of placoderm known from the Gogo Formation. It lived in the Upper Devonian of Western Australia. The genus is monotypic, with its only species being Compagopiscis croucheri.

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<span class="mw-page-title-main">Panxiosteidae</span> Extinct family of fishes

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Janiosteus is an extinct monospecific genus of placoderm arthrodire from the Middle Devonian: Late Givetian stage found in Timan, Russia.

<span class="mw-page-title-main">Coccosteomorphi</span> Extinct suborder of fishes

Coccosteomorphi is an extinct clade of arthrodire placoderms within the Eubrachythoraci, armored fish most diverse during the Devonian. Most are considered to be pelagic long-distance swimmers, leading to their widespread distribution beginning from at least the Middle Devonian period.

Torosteus is an extinct genus of arthrodire placoderm from the Early Frasnian stage of the Late Devonian period. Fossils are found in the Kimberley region of Australia.

References

  1. Heintz., Anatol, 1932, The structure of Dinichthys, a contribution to your knowledge of the Arthrodira: In: The Bashford Dean Memorial Volume Archaic Fishes Archived 2013-05-22 at the Wayback Machine , edited by Gudger, E. W., article IV, The American Museum of Natural History, 224pp.
  2. Carr, R.K.; Hlavin, W.J. (2010). "Two new species of Dunkleosteus Lehman, 1956, from the Ohio Shale Formation (USA, Famennian) and the Kettle Point Formation (Canada, Upper Devonian), and a cladistic analysis of the Eubrachythoraci (Placodermi, Arthrodira)". Zoological Journal of the Linnean Society . 159 (1): 195–222. doi: 10.1111/j.1096-3642.2009.00578.x .
  3. 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.
  4. 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.