Brachythoraci

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Brachythoraci
Temporal range: Devonian
Coccosteus BW.jpg
Reconstruction of the coccosteine Coccosteus decipiens
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Class: Placodermi
Order: Arthrodira
Suborder: Brachythoraci
Contained taxa

Brachythoraci is an extinct suborder of arthrodire placoderms, armored fish most diverse during the Devonian. The suborder previously only contained the infraorder Coccosteina, but the more basal family, Heterosteidae is now placed within there too.

Phylogeny[edit]

Below is a cladogram from Carr and Hlavin (2010).[1]

Arthrodira 

Dicksonosteus arcticus


Brachythoraci

Holonema westolli




Homosteus




Buchanosteus confertituberculatus


Eubrachythoraci
Coccosteomorphi

Coccosteus cuspidatus




Camuropiscis



Harrytoombsia elegans




Pachyosteomorphi
Dunkleosteoidea
Panxiosteidae

Panxiosteus ocullus



Janiosteus timanicus



Dunkleosteidae

Eastmanosteus pustulosis




Eastmanosteus calliaspis




Golshanichthys asiatica




Westralichthys uwagedensis




Dunkleosteus terrelli



Dunkleosteus raveri



Dunkleosteus amblyodoratus








Aspinothoracidi

Rhinosteus parvulus




Gymnotrachelus hydei




Dinichthys herzeri




Heintzichthys gouldii




Gorgonichthys clarki



Hadrosteus rapax













References[edit]

  1. ^ 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: 195. doi:10.1111/j.1096-3642.2009.00578.x.  edit