Simblaspis

{{short description|Genus of extinct fish}}

{{Automatic_taxobox

| fossil_range = Early Devonian: Pragian, {{fossilrange|410|407}}

| taxon = Simblaspis

| authority = Denison, 1958

| subdivision_ranks = Species

| subdivision =

• {{extinct}}Simblaspis cachensis Denison, 1958 (type)

}}

Simblaspis is an extinct monospecific genus of arthrodire placoderm fish of the Early Devonian period. The type species Aleosteus eganensis was described in 1958, and was found in Pragian strata of the Qasr Limestone in Saudi Arabia.{{cite book|last=Denison|first=R. H.|year=1958|title=Early Devonian Fishes from Utah: Part III. Arthrodira|publisher=Chicago Natural History Museum}}

It is one of the more basal members of the order Arthrodira, closely related to Aleosteus, as shown in the cladogram below:{{Phylogeny/Actinolepidoidei}}