Phillipsiidae

Phillipsiidae is a family of proetid trilobites, the various genera of which comprise some of the last of the trilobites, with a range that extended from the Kinderhookian epoch of the Lower Mississippian, to the end of Changhsingian age at Permian-Triassic extinction event in the latest Permian period.

Phillipsiidae is sometimes defined as a subfamily, "Phillipsiinae," and usually placed within the family Proetidae. Jell & Adrain (2003) went so far as to lump Phillipsiidae into the family Proetidae, however other workers since like Lerosey-Aubril and Feist (2005) have continued to recognize Phillipsiidae as a distinct and separate family within Proetida.

Subfamilies
The following genera are included, divided among six subfamilies:


 * No subfamily
 * Phillipsia (type genus)
 * Breviphillipsia
 * Comptonaspis
 * Griffithidella
 * Hesslerides
 * Kollarcephalus
 * Nunnaspis
 * Phillibole
 * Piltonia


 * Subfamily Archegoninae
 * Archegonus
 * Hildaphillipsia


 * Subfamily Bollandiinae
 * Bollandia
 * Kathwaia
 * Neoproetus


 * Subfamily Cummingellinae
 * Bedicella
 * Cummingella
 * Paraphillipsia
 * Persiax


 * Subfamily Cyrtosymbolinae
 * Carbonocoryphe
 * Cyrtosymbole


 * Subfamily Ditomopyginae
 * Acanthophillipsia
 * Acropyge
 * Ameropiltonia
 * Ameura
 * Ampulliglabella
 * Australokaskia
 * Anisopyge
 * Delaria
 * Ditomopyge
 * Hentigia
 * Iranaspidion
 * Jimbokranion
 * Malchi
 * Microphillipsia
 * Novoameura
 * Planokaskia
 * Permoproetus
 * Pseudophillipsia
 * Simulopaladin
 * Timoraspis
 * Vidria


 * Subfamily Thaiaspidinae
 * Thaiaspis
 * Thigriffides


 * Subfamily Weaniinae
 * Doublatia
 * Endops
 * Nipponaspis
 * Weania