To the 80th anniversary of Professor Thomas Cavalier-Smith (1942–2021)

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Abstract

The present essay is dedicated to one of the most famous evolutionary biologists of recent decades, Thomas Cavalier-Smith, one of the founders of eukaryotic megasystematics. His theoretical work was devoted to various aspects of the origin of the cell and the evolution of the genome, and the main thing was the improvement of eukaryotic megasystematics. Cavalier-Smith’s thinking style was characterized by a detailed elaboration of data from various disciplines, including cell biology, biochemistry, molecular evolution, protistology, microbiology, and paleontology. He had an encyclopedic outlook, a lively mind and was alien to dogmatism. His peculiar cognitive method was to put forward and then test extravagant evolutionary hypotheses. The theoretical heritage of Cavalier-Smith has influenced several generations of researchers and the landscape of modern theoretical biology. The life of Cavalier-Smith is a perfect example of endless dedication and a sense of professional duty.

About the authors

Ivan V. Zmitrovich

Komarov Botanical Institute of the Russian Academy of Sciences

Author for correspondence.
Email: iv_zmitrovich@mail.ru
ORCID iD: 0000-0002-3927-2527
SPIN-code: 4155-3190
Scopus Author ID: 56521442400
ResearcherId: I-1523-2013
https://binran.ru/sotrudniki/4926/

D.Sc. in Biology, Leading Researcher, Laboratory of Systematics and Geography of the Fungi

Russian Federation, St. Petersburg

Vladimir V. Perelygin

Saint Petersburg State Chemical and Pharmaceutical University

Email: vladimir.pereligin@pharminnotech.com
ORCID iD: 0000-0002-0999-5644
Scopus Author ID: 13105602000
ResearcherId: AAV-6556-2020
https://sites.google.com/a/pharminnotech.com/pesocnica-pe/sotrudniki-kafedry/perlygin-vladimir-veniaminovich

Doctor of Medicine (MD), Professor, Head of the Industrial Ecology Department

Russian Federation, Saint Petersburg

Mikhail V. Zharikov

Saint Petersburg State Chemical and Pharmaceutical University

Email: zharikov.mihail@pharminnotech.com
ORCID iD: 0000-0003-0720-501X
SPIN-code: 7818-7228
ResearcherId: AAS-9156-2021

Master of the Department of Industrial Ecology

Russian Federation, Saint Petersburg

References

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  34. Zmitrovich I. V., Perelygin V. V., Zharikov M. V. Nomenclature and rank correlation of higher taxa of eukaryo tes: monograph. INFRA-M, Moscow, 2022. 183 p. (Folia Cryptogamica Petropolitana N 8).

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2. Fig. 1. Cavalier-Smith (1942 – 2021). Painter – Mustafayeva Olga

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3. Fig. 2. Diversification of cell body plans of prokaryotic cells and the main life boundary (prokaryotes/eukaryotes) according to Cavalier-Smith [9]. The gray vertical line indicates an informal (non-phylogenetic) “neomura” grouping, the arrows indicate the direct phyliation of taxa and organelles (symbiogenesis), and the cross-strokes indicate the main progressive events in evolution

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