Anisopyge
Appearance
Anisopyge Temporal range:
| |
---|---|
A. perannulata fossil fragments | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Class: | †Trilobita |
Order: | †Proetida |
Family: | †Phillipsiidae |
Subfamily: | †Ditomopyginae |
Genus: | †Anisopyge |
Anisopyge is an extinct genus of trilobite belonging to the order Proetida and family Phillipsiidae.[1] Specimens have been found in Permian beds in North and Central America.[2][3]
The genus was among the last surviving trilobite groups. It may have evolved from Sevillea, diversifying to fill empty ecological niches.[3]
Species
- A. cooperi Brezinski 1992[4]
- A. hyperbola Chamberlain 1972[3]
- A. inornata Girty 1909[5]
- A. perannulata Shumard 1858[6]
References
- ^ Owens, R. M. (2003). "The stratigraphical distribution and extinctions of Permian trilobites". Special Papers in Palaeontology. 70: 377–397.
- ^ Chamberlain, C.K. (1970). "Permian trilobite species from central Wyoming and west Texas". Journal of Paleontology. 44 (6): 1049–1054.
- ^ a b c Chamberlain, C.K. (1972). "Evolution of the Permian trilobite Anisopyge". Journal of Paleontology. 46 (4): 503–508. JSTOR 1302996.
- ^ Brezinski, David K. (November 1992). "Permian trilobites from West Texas". Journal of Paleontology. 66 (6): 924–943. doi:10.1017/S0022336000021028.
- ^ Cisne, J. L. (1971). "Paleoecology of trilobites of the Kaibab limestone (Permian) in Arizona, Utah, and Nevada". Journal of Paleontology. 45 (3): 525–533.
- ^ 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" (PDF). Paleontología Mexicana. 5: 103–109. Retrieved 22 February 2022.