Pinguosteus

Extinct genus of fishes

Pinguosteus Temporal range: Frasnian

Artist's reconstruction
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Placodermi
Order:	Arthrodira
Suborder:	Brachythoraci
Infraorder:	Coccosteina
Family:	incertae sedis
Genus:	Pinguosteus Long, 1990
Type species
Pinguosteus thulborni Long, 1990

Pinguosteus thulborni is a species of arthrodire placoderm from the Gogo Reef Formation, of Late Devonian Australia. The proportions of its armor, coupled with the relative lack of otherwise diagnostic ornamentation on the armor make its classification difficult, and so it was placed as incertae sedis within the placoderm group Coccosteina. It is the only known species of the genus Pinguosteus.

Etymology

The generic name is a compound of the Latin words pinguis, meaning "fat," and os, meaning "bone," in allusion to the broad proportions of its armor plates. The specific name commemorates Dr. Tony Thulborn.

References

Long, J. A. 1990a, "Two new arthrodires (placoderm fishes) from the Upper Devonian Gogo Formation, Western Australia". Memoirs of the Queensland Museum 28, De Vis Symposium Volume, pp. 51–64.

"Placodermi"

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata

Gnathostomata

see Gnathostomata
Placodermi	see below↓

Placodermi

Acanthothoraci *

Hagiangella
Palaeacanthaspidae*	Arabosteus Dobrowlania Kimaspis Kolymaspis Kosoraspis Palaeacanthaspis Radotina Romundina Sudaspis Tlamaspis
Weejasperaspididae	Murrindalaspis Weejasperaspis

Petalichthyida

Diandongpetalichthys Neopetalichthys
Quasipetalichthyidae	Eurycaraspis Pauropetalichthys Quasipetalichthys
Macropetalichthyidae	Ellopetalichthys Epipetalichthys Lunaspis Macropetalichthys Notopetalichthys Shearsbyaspis Tongdzuylepis Wijdeaspis