''Aserotaspis'' is an extinct genus of

jawless fish Agnatha (; ) or jawless fish is a paraphyletic infraphylum of animals in the subphylum Vertebrata of the phylum Chordata, characterized by the lack of jaws. The group consists of both extant taxon, living (Cyclostomi, cyclostomes such as hagfish ...

which existed in what is now northern

Canada Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of coun ...

. by D.K. Elliott and E.J. Loeffler, 1988. It was first named by Dineley and Loeffler in 1976, and contains the species ''Aserotaspis canadensis''.

References

Heterostraci genera Fossils of Canada {{Devonian-jawless-fish-stub