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Cystoporida (Bryozoa) from the Emsian Stage (Lower Devonian) of the Salair Ridge and Gorny and Rudny Altai

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Abstract

Eight bryozoan species of the order Cystoporida are described from the Emsian Stage of the Lower Devonian in the western Altai-Sayan Folded Area. Five of them are new species: Fistulipora salairiensis sp. nov., Fistuliramus fasciculus sp. nov., Fistuliphragma sibirica sp. nov., F. moniliformis sp. nov., and Fistulocladia cincinnata sp. nov. The others belong to the genera Ganiella, Physallidopora, and Fistuliporidra. Most of the cystoporid species studied from the Emsian Stage in the Altai-Sayan Folded Area are widespread laterally. Six cystoporid species have a narrow stratigraphic range and are, therefore, characteristic species of the bryozoan biostratigraphic zones of this region. The species of Physallidopora cantabrica Ernst et Buttler and Fistuliporidra hibera Ernst et Buttler, for the first time encountered in the Emsian of Gorny and Rudny Altai, were previously described from coeval deposits in northwestern Spain.

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  1. Siberian State Industrial University, ul. Kirova 42, Novokuznetsk, 654007, Russia

    O. P. Mesentseva

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  1. O. P. Mesentseva
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Correspondence to O. P. Mesentseva.

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Original Russian Text © O.P. Mesentseva, 2016, published in Paleontologicheskii Zhurnal, 2016, No. 4, pp. 58–67.

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Mesentseva, O.P. Cystoporida (Bryozoa) from the Emsian Stage (Lower Devonian) of the Salair Ridge and Gorny and Rudny Altai. Paleontol. J. 50, 376–387 (2016). https://doi.org/10.1134/S0031030116040080

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  • DOI: https://doi.org/10.1134/S0031030116040080

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