Canonia is an extinct genus of jawless fish found in Canada.
There are two species in this genus, C. grossi and C.
[1] The C.grossi specie is thought to be from the Devonian Period (Early Lochkovian).
[2] Fossils of C.grossi have been found in the Boothia Peninsula.
This article related to a Devonian jawless fish is a stub.