Abstract
The middle Oxfordian and late Kimmeridgian radiolarian assemblages from Upper Jurassic deposits of Yaroslavl oblast are studied for the first time. The middle Oxfordian assemblage is dominated by stauraxonic morphotypes of genera Paronaella and Pseudocrucella occurring in association with discoid forms. Nassellarian radiolarians are very rare in this assemblage of extremely low taxonomic diversity, which is lacking spheroidal morphotypes. The late Kimmeridgian assemblage is more diverse in morphological and taxonomic aspects. It includes spheroidal forms, those of the family Pantanelliidae Pessagno inclusive, and more frequent nassellarian species, but stauraxonic radiolarians are less abundant in its composition. This assemblage is comparable to a considerable extent with the Kimmeridgian radiolarians from Moscow oblast, being of the South Boreal type according to its composition.
Similar content being viewed by others
References
Abbink, O., Targarona, J., Brinkhuis, H., and Visscher, H., Late Jurassic to earliest Cretaceous palaeoclimatic evolution of the Southern North Sea, Glob. Planet. Change, 2001, vol. 30, pp. 231–256.
Middle Jurassic to Lower Cretaceous radiolaria of Tethys: occurrences, systematics, biochronology, in INTERRAD Jurassic-Cretaceous Working Group (Project Leader P.O. Baumgartner). Univ. Lausanne Mem. Geol., Baumgartner, P.O., O’Dogherty, L., Gorican, S., et al., Eds., 1995, vol. 23.
Bragin, N.Y., Radiolaria from the phosphorite basal horizons of the Volgian stage in the Moscow Region (Russia), Rev. Micropaleontol., 1997, vol. 40, no. 4, pp. 285–296.
Bragin, N.Yu., Radiolarians of the Volgian and Berriasian stages of the North of Central Siberia, Stratigr. Geol. Correlation, 2011, vol. 19, no. 2, pp. 173–187.
Brigaud, B., Puceat, E., Pellenard, P., et al., Climatic fluctuations and seasonality during the Late Jurassic (Oxfordian-Early Kimmeridgian) inferred from δ18O of Paris basin oyster shells, Earth Planet. Sci. Lett., 2008, vol. 273, pp. 58–67.
Gerasimov, P.A., Verkhnii pod”yarus volzhskogo yarusa tsentral’noi chasti Russkoi platformy (The Upper Substage of the Volgian Stage in the Central Part of the Russian Platform), Moscow: Nauka, 1969 [in Russian].
Gorican, S., Carter, E.S., Dumitrica, P., et al., Catalogue and Systematics of Pliensbachian, Toarcian and Aalenian Radiolarian Genera and Species, Ljubljana: Zalozba ZRC/ZRC Publish., 2006.
Gruszczynnski, M., Chemistry of Jurassic seas and its bearing on the existing organic life, Acta Geol. Polon., 1998, vol. 48, no. 1, pp. 1–29.
Hull, D.M., Upper Jurassic Tethyan and Southern Boreal radiolarians from Western North America, Micropaleontol., 1997, vol. 43, Suppl. 2, pp. 1–202.
Hull, D.M., Blome, C.D., and Pessagno Jr, E.A., Paleomagnetism of Jurassic radiolarian chert above the coast range ophiolite at Stanley Mountain, California, and implications for its paleogeographic origins: discussion and reply, Bull. Geol. Soc. Am., 1997, vol. 108, pp. 643–652.
Khudyaev, I.E., O radiolyariyakh i fosforitakh Sysol’skogo raiona (About Radiolarians and Phosphorites of the Sysola District), Moscow-Leningrad, Geol. Izd. Glavn. Geol.-Razved. Uprav., 1931.
Kiessling, W., Late Jurassic radiolarians from the Antarctic peninsula, Micropaleontol., 1999, vol. 45, Suppl. 1, pp. 1–96.
Kiselev, D.N., Baranov, V.N., Muravin, E.S., et al., Atlas geologicheskikh pamyatnikov prirody Yaroslavskoi oblasti (Atlas of Geological Monuments in the Yaroslavl Region), Yaroslavl: Yaroslavskii Gos. Pedag. Univ., 2003 [in Russian].
Kozlova, G.E., New Early Kimmeridgian radiolarians from the Timan-Ural region, in Novye vidy drevnikh rastenii i bespozvonochnykh (New Species of Fossil Plants and Invertebrates of the USSR), Leningrad: Nedra, 1973, pp. 57–60.
Pessagno, E.A., Jr., Upper Jurassic radiolaria and radiolarian biostratigraphy of the California coast ranges, Micropaleontol., 1977, vol. 23, no. 1, pp. 56–113.
Pessagno, E.A., Jr. and Blome, C.D., Faunal affinities and tectonogenesis of Mesozoic rocks in the Blue Mountains Province of Eastern Oregon and western Idaho, in Geology of the Blue Mountains region of Oregon, Idaho, and Washington: Geologic Implications of Paleozoic and Mesozoic Paleontology and Biostratigraphy, Vallier, T.L. and Brooks, H.C., Eds., U.S. Geol. Surv. Prof. Pap., 1986, vol. 1435, pp. 65–78.
Pessagno, E.A., Jr. and Longoria, J.E., Macleod, N., Six, W.M., Studies of North American Jurassic radiolaria. Part I. Upper Jurassic (Kimmeridgian-upper Tithonian) Pantanelliidae from the Taman Formation, East-Central Mexico: tectonostratigraphic, chronostratigraphic and phylogenic implications, Cushman Found. Foram. Res. Spec. Publ., 1987, no. 3, pp. 1–55.
Pessagno, E.A., Jr., Blome, C.D., Hull, D.M., and Six, W.M., Jurassic radiolaria from the Josephine ophiolite and overlying strata, Smith River subterrane (Klamath Mountains), northwestern California and southwestern Oregon, Micropaleontol., 1993, vol. 39, no. 2, pp. 93–166.
De Wever, P., Hagiastridae, Patulibracchiidae et Spongodiscidae (Radiolaires Polycystines) du Lias de Turquie, Rev. Micropaleontol., 1981, vol. 24, no. 1, pp. 27–50.
Yang, Q., Taxonomic studies of Upper Jurassic (Tithonian) radiolaria from the Taman Formation, East-Central Mexico, Palaeoworld, 1993, no. 3 (Spec. Iss.), pp. 1–164.
Zakharov, V.A., Meledina, S.V., and Shurygin, B.N., Paleobiochores of Jurassic Boreal basins, Geol. Geofiz., 2003, vol. 44, no. 7, pp. 664–675.
Zakharov, V.A., Paleobiogeography, paleogeography and paleogeodynamics, in Biosfera-ekosistema-biota v proshlom Zemli. Paleobiogeograficheskie aspekty. K 100-letiyu so dnya rozhdeniya akademika V.V. Mennera (Biosphere-Ecosystem-Biota in the Earth History: Paleobiogeographic Aspects. To the 100th anniversary of V.V. Menner), Moscow: Nauka, 2005, pp. 46–72.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © N.Yu. Bragin, D.N. Kiselev, 2013, published in Stratigrafiya. Geologicheskaya Korrelyatsiya, 2013, Vol. 21, No. 6, pp. 62–71.
Rights and permissions
About this article
Cite this article
Bragin, N.Y., Kiselev, D.N. Radiolarians from Upper Jurassic (Middle Oxfordian and Upper Kimmeridgian) deposits of Yaroslavl oblast. Stratigr. Geol. Correl. 21, 628–636 (2013). https://doi.org/10.1134/S0869593813060026
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0869593813060026