Abstract
The genus Entactinosphaera Foreman, 1963 is revised; it is shown to combine seven different genera, which are distinguished by morphological characters and belong to three orders of two radiolarian classes: the class Sphaerellaria, order Entactiniata (Bientactinosphaera, Entactinosphaera, Helioentactinia, Radiobisphaera), and class Spumellaria, orders Cancelliata (Retientactinosphaera, Magnisphaera) and Spongiata (Spongentactinia). New radiolarian taxa from the Middle Frasnian-Lower Famennian of the Timan-Pechora Basin and from the Lower Famennian of the Polar Ural Mountains, Russia, are described: Retientactinosphaera gen. nov., R. magnifica sp. nov., and R. clavata sp. nov.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Afanasieva, M.S., New Radiolarians of the Orders Aculearia and Sphaerellaria from the Upper Devonian of the Timan-Pechora Province of Russia, Paleontol. Zh., 2000a, no. 4, pp. 3–19 [Paleontol. J. (Engl. Transl.), 2000a, vol. 34, no. 4, pp. 115–132].
Afanasieva, M.S., Atlas radiolyarii paleozoya Russkoi platformy (Atlas of Paleozoic Radiolaria of the Russian Platform), Moscow: Nauchnyi Mir, 2000b.
Afanasieva, M.S. and Amon, E.O., A New Classification of the Radiolaria, Paleontol. Zh., 2003, no. 6, pp. 72–86 [Paleontol. J. (Engl. Transl.), 2003, vol. 37, no. 6, pp. 630–645].
Afanasieva, M.S. and Amon, E.O., Radiolyarii (Radiolaria), Moscow: Paleontol. Inst. Ross. Akad. Nauk, 2006.
Afanasieva, M.S., Amon, E.O., Agarkov, Yu.V., and Bolt-ovskoy, D.S., Radiolarians in the Geological Record, Paleontol. J. 2005, vol. 39,suppl. 3, pp. 135–392.
Amon, E.O., Radiolarians of the Ural Mountains and Their Stratigraphic Significance, Doctoral (Geology and Mineralogy) Dissertation, Yekaterinburg: Inst. Geol. Geokhim., 1999.
Birina, L.M., New Species of Calciferous Algae and Foraminifers from the Boundary Beds of the Devonian and Carboniferous, Sov. Geol., 1948, no. 28, pp. 154–159.
Foreman, H.P., Upper Devonian Radiolaria from the Huron Member of the Ohio Shale, Micropaleontology, 1963, vol. 9, no. 3, pp. 267–304.
International Code of Zoological Nomenclature, 4th ed., London: Int. Trust Zool. Nomen., 1999.
Kruchek, S.A. and Nazarov, B.B., Upper Devonian Radiolaria from the Russian Platform, Dokl. Akad. Nauk SSSR, 1977, vol. 237, no. 6, pp. 1445–1448.
Nazarov, B.B., Radiolyarii nizhnego-srednego paleozoya Kazakhstana (metody issled., sistematika, stratigr. znach.) (Radiolarians from the Lower-Middle Paleozoic of Kazakhstan: Methods of Studying, Systematics, and Stratigraphic Significance), Moscow: Nauka, 1975.
Nazarov, B.B., Evolution of Radiolaria in the Paleozoic and Questions of Their Systematics, in Sistematika, evolyutsiya i stratigraficheskoe znachenie radiolyarii (Systematics, Evolution and Stratigraphic Significance of Radiolaria), Moscow: Nauka, 1981, pp. 22–37.
Nazarov, B.B., Radiolyarii paleozoya. Prakticheskoe rukovodstvo po mikrofaune SSSR (Paleozoic Radiolaria: Practical Manual on the Microfauna of the USSR), Leningrad: Nedra, 1988, vol. 2.
Nazarov, B.B., Cocbain A.E., and Playford P.E., Late Devonian Radiolaria from the Gogo Formation, Canning Basin, Western Australia, Alcheringa, 1982, vol. 6, nos. 3–4, pp. 161–174.
Nazarov, B.B. and Ormiston, A.R., A New Superfamily of Stauraxon Polycystine Radiolaria from the Late Paleozoic of the Soviet Union and North America, Senckenberg. Lethaea, 1983a, vol. 64, no. 2/4, pp. 363–379.
Nazarov, B.B. and Ormiston, A.R., Upper Devonian (Frasnian) Radiolarian Fauna from the Gogo Formation, Western Australia, Micropaleontology, 1983b, vol. 29, no. 4, pp. 454–466.
Nazarov, B.B. and Ormiston, A.R., Tentative System of Paleozoic Radiolaria, in Morfologiya, ekologiya i evolyutsiya radiolyarii (Morphology, Ecology, and Evolution of Radiolarians), Leningrad: Nauka, 1984, pp. 64–87.
Nazarov, B.B. and Ormiston, A.R., Radiolarians from Late Paleozoic of the Southern Urals, USSR, and West Texas, USA, Micropaleontology, 1985, vol. 30, no. 1, pp. 1–54.
Nazarov, B.B. and Ormiston, A.R., Trends in the Development of Paleozoic Radiolaria, Marine Micropaleontol., 1986, no. 11, pp. 3–32.
Nazarov, B.B. and Ormiston, A.R., Biostratigraphic Potential of Paleozoic Radiolarians, in Radiolyarii v biostratigrafii. Sb. nauch. tr. (Radiolarians in Biostratigraphy: Collected Works), Sverdlovsk: Ural. Otd. Akad. Nauk SSSR, 1990, pp. 3–25.
Nazarov, B.B. and Ormiston, A.R., New Biostratigraphically Important Paleozoic Radiolaria of Eurasia and North America, Micropaleontology, 1993, Spec. publ. 6 (Radiolaria of Giant and Subgiant Fields in Asia), pp. 22–60.
Nazarov, B.B. and Petrushevskaya, M.G., Class Radiolaria, in Mikropaleontologiya: Uchebnik (Micropaleontology: Handbook), Moscow: Mosk. Gos. Univ., 1995, pp. 111–158.
Over, J., Conodont Stratigraphy of the Chattanooga Shale, Middle and Upper Devonian, Southern Appalachian Basin, Eastern United States, J. Paleontol., 2007, vol. 81, no. 6, pp. 1194–1217.
Won, M.-Z., Review of Family Entactiniidae (Radiolaria), Taxonomy and Morphology of Entactiniidae in the Late Devonian (Frasnian) Gogo Formation, Australia, Micropaleontology 1997, vol. 43, no. 4, pp. 333–369.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © M.S. Afanasieva, 2011, published in Paleontologicheskii Zhurnal, 2011, No. 2, pp. 3–13
Rights and permissions
About this article
Cite this article
Afanasieva, M.S. Revision of the genus Entactinosphaera Foreman, 1963 and the new genus Retientactinosphaera gen. nov. (Paleozoic radiolaria). Paleontol. J. 45, 117–129 (2011). https://doi.org/10.1134/S003103011102002X
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S003103011102002X