Trend of changes in species diversity of Permian radiolarians of the genus Entactinia Foreman
- Авторлар: Amon E.1, Afanasieva M.1
-
Мекемелер:
- Borissiak Paleontological Institute.
- Шығарылым: Том 51, № 2 (2017)
- Беттер: 109-126
- Бөлім: Article
- URL: https://journals.rcsi.science/0031-0301/article/view/166958
- DOI: https://doi.org/10.1134/S0031030117020022
- ID: 166958
Дәйексөз келтіру
Аннотация
The trend of species diversity and spatiotemporal distribution of spherical radiolarians of the genus Entactinia Foreman, 1963 in the Permian Period is analyzed. The center of origin of Permian entactinians in the Cis-Ural Paleobasin is established in the area of the modern interfluve of the Ural River and latitudinal current of the Belaya River on the Southern Urals. It is shown that the species composition of this genus almost completely changed in certain Permian epochs. Two forefather species of each new pleiad of Early, Middle, and Late Permian are revealed: Entactinia parapycnoclada and E. tyrrelli. Two new species of the Lower Permian radiolarians from the Southern Urals and Northern Mugodzhary, E. chernykhi sp. nov. and E. subquadrata sp. nov., are described.
Негізгі сөздер
Авторлар туралы
E. Amon
Borissiak Paleontological Institute.
Email: afanasieva@paleo.ru
Ресей, Profsoyuznaya ul. 123, Moscow, 117997
M. Afanasieva
Borissiak Paleontological Institute.
Хат алмасуға жауапты Автор.
Email: afanasieva@paleo.ru
Ресей, Profsoyuznaya ul. 123, Moscow, 117997