Protamphisopus

Protamphisopus
Temporal range: 255–240 Ma Permian–Triassic
Protamphisopus baii fossil from
the Guanling Formation
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Malacostraca
Order: Isopoda
Suborder: Phreatoicidea
Family: Amphisopodidae
Genus: †Protamphisopus
Nicholls, 1943
Type species
†Phreatoicus wianamattensis
Chilton, 1918

Protamphisopus is a genus of extinct phreatoicidean freshwater isopods from the Permian and Triassic periods.

Taxonomy

Three species are currently placed in Protamphisopus:

The genus appears to be paraphyletic, with the Late Permian species Protamphisopus reichelti likely belonging to stem group Palaeophreatoicidae and the Triassic species Protamphisopus baii and Protamphisopus wianamattensis likely belonging to Amphisopidae in crown group Phreatoicidea.

References

  1. ↑ Schotte M, Boyko CB, Bruce NL, Poore GC, Taiti S, Wilson GD (eds.). "Protamphisopus Nicholls, 1943 †". World Marine, Freshwater and Terrestrial Isopod Crustaceans Database. World Register of Marine Species. Retrieved 17 August 2026.
  2. 1 2 Wilson, George D. F.; Edgecombe, Gregory D. (2003). "The Triassic isopod Protamphisopus wianamattensis (Chilton) and comparison by extant taxa (Crustacea, Phreatoicidea)". Journal of Paleontology. 77 (3): 454–470. doi:10.1017/S0022336000044176. ISSN 0022-3360. OCLC 1754714.
  3. 1 2 Glaessner, Martin F.; Malzahn, Erich (December 1962). "Neue Crustaceen aus dem niederrheinischen Zechstein" (PDF). Fortschritte in der Geologie von Rheinland und Westfalen (in German). 6: 259–264. ISSN 0071-8009. OCLC 1569891 – via Natural History Museum of Los Angeles County.
  4. 1 2 Fu, Wan-Lu; Wilson, George D. F.; Jiang, Da-Yong; Sun, Yuan-Lin; Hao, Wei-Cheng; Sun, Zuo-Yu (2010). "A new species of Protamphisopus Nicholls (Crustacea, Isopoda, Phreatoicidea) from Middle Triassic Luoping Fauna of Yunnan Province, China". Journal of Paleontology. 84 (5): 1003–1013. doi:10.1666/10-042.1. ISSN 0022-3360. OCLC 1754714 – via ResearchGate.
  5. ↑ Chilton, Chas (1918). "A fossil isopod belonging to the freshwater genus Phreatoicus". Journal and Proceedings of the Royal Society of New South Wales (51): 365–388. doi:10.5962/p.359715. ISSN 0035-9173. LCCN sn85009976. OCLC 764619 – via Biodiversity Heritage Library.