Anisopyge

{{Short description|Extinct genus of trilobite}}

{{Automatic taxobox

| fossil_range = Kungurian-Capitanian{{fossil range|279|259}}{{cite web |title=Anisopyge Girty 1909 (trilobite) |url=https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=21072 |website=Fossilworks.org}}

| image = Anisopyge.png

| image_caption = A. perannulata fossil fragments

| taxon = Anisopyge

| authority =

| subdivision_ranks = Species

| subdivision_ref =

}}

Anisopyge is an extinct genus of trilobite belonging to the order Proetida and family Phillipsiidae.{{cite journal |first1=R. M. |last1=Owens |year=2003 |title=The stratigraphical distribution and extinctions of Permian trilobites |journal=Special Papers in Palaeontology |volume=70 |pages=377–397 }} Specimens have been found in Permian beds in North and Central America.{{cite journal |first1=C.K. |last1=Chamberlain |year=1970 |title=Permian trilobite species from central Wyoming and west Texas |journal=Journal of Paleontology |volume=44 |number=6 |pages=1049–1054}}{{cite journal |first1=C.K. |last1=Chamberlain |year=1972 |title=Evolution of the Permian trilobite Anisopyge |journal=Journal of Paleontology |volume=46 |number=4 |pages=503–508 |jstor=1302996}}

The genus was among the last surviving trilobite groups. It may have evolved from Sevillea, diversifying to fill empty ecological niches.