Benneviaspidida

Benneviaspidida Temporal range: 416–398 Ma PreЄ Є O S D C P T J K Pg N Early Devonian
Boreaspis, a fish in order Benneviaspidida
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Osteostraci
Order:	Benneviaspidida
Families
Boreaspididae

Boreaspididae

Benneviaspidida is an order in the cladogram of the prehistoric jawless fishes which lived in the Early Devonian. The fishes in order Benneviaspidida have flat headshield and are dorsoventrally depressed. They have also a short body. The first canal to lateral sensory field bifurcates near the orbit.