Phillipsiidae
From Wikipedia, the free encyclopedia
| Phillipsiidae Temporal range: | |
|---|---|
 | |
| Nipponaspis | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Clade: | †Artiopoda |
| Class: | †Trilobita |
| Order: | †Proetida |
| Superfamily: | †Proetoidea |
| Family: | †Phillipsiidae Oehlert, 1886 |
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.[1]
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.
The following genera are included, divided among six subfamilies:
- No subfamily
- Subfamily Archegoninae
- Subfamily Bollandiinae
- Subfamily Cummingellinae
- Subfamily Cyrtosymbolinae
- Subfamily Ditomopyginae
- Subfamily Thaiaspidinae
- Subfamily Weaniinae
