Oscar Akramovich Kaibyshev (Russian: Оскар Акрамович Кайбышев ) (March 28, 1939 - June 2, 2017) was a Soviet and Russian metal physicist, founder and director of Institute of Metals Superplasticity Problems of the Russian Academy of Sciences (1987-2005), academician of the Academy of Sciences of the Republic of Bashkortostan and member of the Russian Academy of Natural Sciences, member of the Soviet of Nationalities of 11th Supreme Soviet convocation (1984-1989) from the Bashkir ASSR.
Yuri Vladimirovich Trushin (Russian: Юрий Владимирович Трушин , born 14 August 1945 in Leningrad) is Russian physicist and professor of Theoretical Physics of semiconductors.
 He is a member of the Russian Academy of Natural Sciences, and has been recognized as an Honored Scientist of the Russian Federation.
Yuri Vladimirovich Linnik (Russian: Ю́рий Влади́мирович Ли́нник ; January 8, 1915 – June 30, 1972) was a Soviet mathematician active in number theory, probability theory and mathematical statistics.
Dzhangir Abbasovich Kerimov (Azerbaijani: "Cahangir Abbas oğlu Kərimov" , Russian: Джанги́р Абба́сович Кери́мов ; 18 July 1923 - 22 February 2015) was an Azerbaijani-Russian lawyer, Dr. of Laws (LL.D.)
, Professor, corresponding member of the Russian Academy of Sciences (since 1966); full member (academician) of the Azerbaijani, Serbian, Finnish, Montenegro Academies of Sciences; researcher at the Institute of State and Law of the Russian Academy of Sciences; full member of the Russian Academy of Social Sciences; member of the Social Sciences Department Bureau (section of philosophy, sociology, psychology and law); Chairman of the Scientific and Expert Council under the Union of Lawyers of Russia.
Anatoly Timofeevich Fomenko (Russian: Анато́лий Тимофе́евич Фоме́нко ) (born 13 March 1945 in Stalino, USSR) is a Soviet and Russian mathematician, professor at Moscow State University, well known as a topologist, and a member of the Russian Academy of Sciences.
 He is author of a pseudoscientific theory known as New Chronology.
 He is also a member of the Russian Academy of Natural Sciences (1991).
The New Chronology is a pseudohistorical theory which argues that the conventional chronology of Middle Eastern and European history is fundamentally flawed, and that events attributed to the civilizations of the Roman Empire, Ancient Greece and Ancient Egypt actually occurred during the Middle Ages, more than a thousand years later.
 The central concepts of the New Chronology are derived from the ideas of Russian scholar Nikolai Morozov (1854–1946), although work by French scholar Jean Hardouin (1646–1729) can be viewed as an earlier predecessor.
 However, the New Chronology is most commonly associated with Russian mathematician Anatoly Fomenko (born 1945), although published works on the subject are actually a collaboration between Fomenko and several other mathematicians.
 The concept is most fully explained in "History: Fiction or Science?"
, originally published in Russian.
Alla Yervandovna "Yervandi" Ter-Sarkisiants ("Ալլա Երվանդի Տեր-Սարգսյանց" ; Russian: "Алла Ервандовна Тер-Саркисянц" ) is a preeminent historian and ethnographer of Armenia, doctor of historical sciences, leading specialist of the Caucasus department of N. N. Miklukho-Maklai Institute of Ethnology and Anthropology of the Russian Academy of Sciences, and a corresponding member of the Russian Academy of Natural Sciences.
Established in 1931, the Herald of the Russian Academy of Sciences (Vestnik Rossiiskoi Akademii Nauk) is a monthly peer-reviewed academic journal published by MAIK Nauka/Interperiodica and Springer Science+Business Media.
 It covers major contributions, speeches, and presentations to the Russian Academy of Sciences from both Russian and foreign academics.
 Subjects encompass natural, technical, and social sciences, as well as education, the environment, the value of scientific knowledge, and researchers' relationship to society.
 The editor-in-chief is Yurii Osipov (President, Russian Academy of Sciences).
Simon El'evich Shnol (Russian: Симон Эльевич Шноль ; born 21 March 1930 in Moscow) is a biophysicist, and a historian of Soviet science.
 He is a professor at Physics Department of Moscow State University and a member of Russian Academy of Natural Sciences.
 His fields of interest are the oscillatory processes in biology, the theory of evolution, Chronobiology, and the history of science.
 He has mentored many successful scientists, including Anatoly Zhabotinsky and Fazly Ataullakhanov.
Gennady Vasilievich Osipov (Russian: Геннадий Васильевич Осипов ) (born June 27, 1929 in Ruzayevka, Mordovia) – a Russian scientist, sociologist and philosopher, Ph.D., Professor, full member (academician) of the Russian Academy of Sciences /RAS/ since 1991; Director of the Institute of Socio-Political Research of the Russian Academy of Sciences (ISPR RAS); President of the Russian Academy of Social Sciences (RASS); member of RAS Social Sciences Department Bureau; President of the Eurasian International Association; member of the Scientific Council of the Russian Security Council; Honorary President of the Russian Sociological Association.

Question: Which Russian figure was a member of the Russian Academy of Natural Sciences, Yuri Linnik or Anatoly Fomenko?
Answer: Anatoly Timofeevich Fomenko