Cephalaspidida

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

{{about|the prehistoric fish taxon|the taxon about gastropods known as bubble snails|Cephalaspidea}}

{{Taxobox

| fossil_range =

| image = Cephalaspis tenuicornis.jpg

| image_caption = Cephalaspis tenuicornis

| regnum = Animalia

| phylum = Chordata

| classis = †Osteostraci

| subclassis = †Cornuata

| ordo = †Cephalaspidida

| ordo_authority = Moy-Thomas and Mile 1971

| subdivision_ranks = Families

| subdivision = * †Cephalaspidae

• Genus incertae sedis †Superciliaspis

| synonyms = *Cephalaspida

• Cephalaspidiformes

}}

Cephalaspidida is an extinct order of jawless fish in the subclass Cornuata.