Septentrionia
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''Septentrionia'' is an extinct genus of jawless fish belonging to the family
Septentrioniidae Anaspida ("shieldless ones") is an extinct group of jawless fish that existed from the early Silurian period to the late Devonian period. They were classically regarded as the ancestors of lampreys, but it is denied in recent phylogenetic analy ...
. It is the type genus of its family.


References


External links

* Birkeniiformes Fossil taxa described in 2002 Birkeniiformes genera {{paleo-jawless-fish-stub