Pycnosteus

Pycnosteus
P. tuberculata
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Agnatha
Order:	Heterostraci
Suborder:	Psammosteida
Family:	Pycnosteida
Genus:	Pycnosteus Preobrazensky, 1911

Pycnosteus is an extinct genus of jawless fish from the Devonian. It is thought to have cruised through vegetation, eating small invertebrates which it knocked loose .

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