''Cartieraspis'' is an

extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of Phlyctaeniid placoderm fish which lived during the Middle Devonian period in

North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...

. Whether or not it is morphologically different enough from its close relative and contemporary '' Phlyctaenius'' to be considered generically distinct is dubious.

References

Placoderms of North America Phlyctaeniidae Middle Devonian animals {{Placoderm-stub