Rhachiosteus

Rhachiosteus; Temporal range: Givetian-Frasnian
	Artist's reconstruction (with in the background)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Vertebrata
Class:	Placodermi
Order:	Arthrodira
Suborder:	Brachythoraci
Infraorder:	Coccosteina
Superfamily:	Dinichthyloidea
Family:	Rhachiosteidae
Genus:	Rhachiosteus
Species:	R. pterygiatus
Binomial name
	Rhachiosteus pterygiatus; Gross, 1938
Synonyms
	"Rachiosteus" pterygiatus;

Rhachiosteus pterygiatus is an extinct brachythoracid arthrodire placoderm from the Late Devonian of Germany. It is known only from a single specimen, which may be a larval or juvenile form, as the skull of said specimen is only 19 millimetres long.^[1]

References[]

'^ Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology. Stuttgart New York: Gustav Fischer Verlag. p. 128. ISBN 9780895740274.

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[Denison-1] '^ Denison, Robert (1978). Placodermi Volume 2 of Handbook of Paleoichthyology. Stuttgart New York: Gustav Fischer Verlag. p. 128. ISBN 9780895740274.

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