New Taxa and New Middle Famennian Natgorella hirsuta–Spinoalius melekessensis Radiolarian Ecozone of the Volga–Ural Basin

New radiolarian taxa are described from the Lower and Middle Famennian of the Polar Urals and Volga–Urals Basin: three new genera Natgorella gen. nov., Spinoalius gen. nov., Diversiacus gen. nov., and three new species N. elegans sp. nov., N. hirsuta sp. nov., and S. melekessensis sp. nov. New taxa...

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Bibliographic Details
Published inPaleontological journal Vol. 53; no. 5; pp. 435 - 446
Main Author Afanasieva, M. S.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.09.2019
Springer Nature B.V
Subjects
Earth and Environmental Science
Earth Sciences
New genera
New genus
New species
New taxa
Paleontology
Physical characteristics
Taxa
morphotypes
Volga–Ural Basin
new ecozone
Late Devonian
convergence
new taxa
Famennian
Radiolaria
Polar Urals
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Summary:New radiolarian taxa are described from the Lower and Middle Famennian of the Polar Urals and Volga–Urals Basin: three new genera Natgorella gen. nov., Spinoalius gen. nov., Diversiacus gen. nov., and three new species N. elegans sp. nov., N. hirsuta sp. nov., and S. melekessensis sp. nov. New taxa belong to two orders, Entactiniata and Cancelliata, of two classes of spherical radiolarians: Sphaerellaria and Spumellaria. Morphotypes of the outer skeletons of Spinoalius gen. nov. and Diversiacus gen. nov are shown to be convergently similar. A new Middle Famennian Natgorella hirsuta–Spinoalius melekessensis radiolarian ecozone is established.
ISSN:0031-0301
1555-6174
DOI:10.1134/S0031030119050022