Heterogaspis

Heterogaspis is an extinct genus of placoderm that lived during the Late Devonian period of Spitsbergen, Norway.^[1][2]

Heterogaspis Temporal range: Late Devonian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	†Arthrodira
Family:	†Phlyctaeniidae
Genus:	†Heterogaspis Strand, 1932
Species
H. acuticornis H. giganteus H. minutus