Anisopyge

Anisopyge is an extinct genus of trilobite belonging to the order Proetida and family Phillipsiidae.^[2] Specimens have been found in Permian beds in North and Central America.^[3][4]

Anisopyge Temporal range: Kungurian-Capitanian279–259 Ma PreꞒ Ꞓ O S D C P T J K Pg N [1]
A. perannulata fossil fragments
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Proetida
Family:	†Phillipsiidae
Subfamily:	†Ditomopyginae
Genus:	†Anisopyge

The genus was among the last surviving trilobite groups. It may have evolved from Sevillea, diversifying to fill empty ecological niches.^[4]

Species

• A. cooperi Brezinski 1992^[5]
• A. hyperbola Chamberlain 1972^[4]
• A. inornata Girty 1909^[6]
• A. perannulata Shumard 1858^[7]