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International Journal on Algae
SJR: 0.216 SNIP: 0.322 CiteScore™: 0.4

ISSN Печать: 1521-9429
ISSN Онлайн: 1940-4328

Выпуски:
Том 22, 2020 Том 21, 2019 Том 20, 2018 Том 19, 2017 Том 18, 2016 Том 17, 2015 Том 16, 2014 Том 15, 2013 Том 14, 2012 Том 13, 2011 Том 12, 2010 Том 11, 2009 Том 10, 2008 Том 9, 2007 Том 8, 2006 Том 7, 2005 Том 6, 2004 Том 5, 2003 Том 4, 2002 Том 3, 2001 Том 2, 2000 Том 1, 1999

International Journal on Algae

DOI: 10.1615/InterJAlgae.v5.i4.80
pages 77-89

New species of Stephanodiscus (Bacillariophyta) from the Pleistocene sediments of Lake Baikal

G. K. Khursevich
Institute of Geochemistry and Geophysics, National Academy of Sciences of Belarus, 7, Kuprevich St., Minsk 220141 Republic of Belarus
S. A. Fedenya
Institute of Geochemistry and Geophysics, National Academy of Sciences of Belarus, 7, Kuprevich St., Minsk 220141 Republic of Belarus
M. I. Kuzmin
Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk 664033, Russia
E. B. Karabanov
Baikal Drilling Project, Department of Geological Sciences, University of South Carolina, Columbia. SC 29208, USA; Institute of Geochemistry, Siberian Branch of the Russian Academy of Sciences, Irkutsk 664033, Russia
D. F. Williams
Baikal Drilling Project, Department of Geological Sciences, University of South Carolina, Columbia. SC 29208, USA
A. A. Prokopenko
Baikal Drilling Project, Department of Geological Sciences, University of South Carolina, Columbia. SC 29208, USA; United Institute of Geology, Geophysics and Mineralogy, Siberian Branch of the Russian Academy of Sciences, Novosibirsk 630090, Russia

Краткое описание

Four new taxa of the genus Stephanodiscus Ehr. (Bacillariophyta), studied under light (LM) and scanning electron microscopes (SEM), are described from the Lake Baikal sediments corresponding to the Brunhes chron in drill core BDP-96-2: Stephanodiscus compactus Khursevich et Fedenya, S. asteroides var. baicalensis Khursevich et Fedenya, S. binderanoides Khursevich et Fedenya and S. distinctus Khursevich var. excentricoides Khursevich. They are distinguished by dimensions of valves, pattern of areolation, number and placement of processes on the valve surface, as well as by the age range. Moreover, one new combination in the composition of this genus is given.


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