Anisopyge

Anisopyge
Temporal range: Kungurian-Capitanian279–259 Ma
A. perannulata fossil fragments
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: †Artiopoda
Class: †Trilobita
Order: †Proetida
Family: †Phillipsiidae
Subfamily: †Ditomopyginae
Genus: †Anisopyge
Girty, 1909

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

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

Species

References

  1. ↑ "Anisopyge Girty 1909 (trilobite)". Fossilworks.org.
  2. ↑ Owens, R. M. (2003). "The stratigraphical distribution and extinctions of Permian trilobites". Special Papers in Palaeontology. 70: 377–397.
  3. ↑ Chamberlain, C.K. (1970). "Permian trilobite species from central Wyoming and west Texas". Journal of Paleontology. 44 (6): 1049–1054.
  4. 1 2 3 Chamberlain, C.K. (1972). "Evolution of the Permian trilobite Anisopyge". Journal of Paleontology. 46 (4): 503–508. JSTOR 1302996.
  5. ↑ Brezinski, David K. (November 1992). "Permian trilobites from West Texas". Journal of Paleontology. 66 (6): 924–943. Bibcode:1992JPal...66..924B. doi:10.1017/S0022336000021028. S2CID 130757075.
  6. ↑ Cisne, J. L. (1971). "Paleoecology of trilobites of the Kaibab limestone (Permian) in Arizona, Utah, and Nevada". Journal of Paleontology. 45 (3): 525–533.
  7. ↑ Sour-Tovar, F.; Quiroz-Barroso, S. A.; Quiroz-Barragán, J.; Torres-Martínez, M. A.; González-Mora, S. (2016). "Presencia de Anisopyge perannulata y Ditomopyge cf. D. whitei (Trilobita, Proetidae) en el Pérmico (Guadalupiano medio) de la Formación Las Delicias, Coahuila, norte de México". Paleontología Mexicana. 5: 103–109. Retrieved 22 February 2022.