Ariaspis

{{Short description|Extinct genus of jawless fishes}}

{{Italic title}}

{{Taxobox

| image =

| fossil_range = Late Silurian - Early Devonian

| regnum = Animalia

| phylum = Chordata

| classis = Pteraspidomorphi

| subclassis = Heterostraci

| ordo = Cyathaspidiformes

| subordo = Cyathaspidida

| familia = Ariaspidae

| genus = Ariaspis

}}

Ariaspis is an extinct genus of cyathaspidiform heterostracan agnathan. Fossils are found in marine strata of Canada and Europe from the late Silurian period until its extinction during the Early Devonian. A new species, A. arctata, was described by David K. Elliott and Sandra Swift in 2010.{{Cite journal | doi=10.1080/02724634.2010.521900|title = A new species of Ariaspis(Agnatha, Heterostraci) from the Late Silurian of the Canadian Arctic| journal=Journal of Vertebrate Paleontology| volume=30| issue=6| pages=1874–1878|year = 2010|last1 = Elliott|first1 = David K.| last2=Swift| first2=Sandra}}