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The Fossil Flora of the Paleogene Climatic Optimum in North Eastern Asia

  • L. Yu. Budantsev
Part of the NATO ASI Series book series (volume 27)

Abstract

The wide distribution of a thermophilic flora in north-eastern Asia during the Eocene is a striking and somewhat unexpected feature in the history of the palaeoflora of this region. Since the end of the Late Cretaceous and the beginning of the Paleogene there was a temperate mesophilic deciduous flora of the ancient Arctic type. But in the Middle Eocene sharp changes occurred in the systematic composition of floristic assemblages. This was the result of extensive invasions of warm-adapted plants (including of the palm Sabal) that had been caused by the global warming of climate. The thermophilic element of apparently North American origin migrated via Beringia to north-eastern Asia. But at the end of the Middle Eocene the thermophilic flora died out almost entirely and was replaced by a temperate mesophilic flora of a coniferous — broad-leaved type. Cooperative international exploration of these palaeofloras of the climatic optimum would help clarify our understanding of the history of the plant kingdom, improve palaeoclimatic and palaeogeographic reconstructions and assist in solving practical aspects of eco- and phytostratigraphy of the continental deposits involved.

Keywords

Middle Eocene Late Eocene Fossil Plant Fossil Assemblage Systematic Composition 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Axelrod D.I. (1992) Climatic pulses, a major factor in legume evolution. Advances in Legume Systematics, part 4: The fossil record. Royal Botanical Gardens, Kew: 259–280.Google Scholar
  2. Budantsev L.Yu. (1989) The fossil flora and phytostratigraphy of the Paleogene of Western Kamchatka. Problems of paleofloristics and stratigraphy. Leningrad: 17–31 [in Russian].Google Scholar
  3. Budantsev L.Yu. (1984) Phytostratigraphy of the continental Paleogene of Western Kamchatka. Data on stratigraphy and paleogeography of Eastern Asia. Vladivostok: 53–58 [in Russian].Google Scholar
  4. Budantsev L.Yu. (1983) The early Cenophytic history of the Arctic flora. Leningrad [in Russian]Google Scholar
  5. Chelebaeva A.I. and Bratseva G.M. (1985) The climatostratigraphy of the Paleogene from palaeofloras. The correlation Cenozoic sediments of the Far East, part 2. Moscow: 157–209 [in Russian].Google Scholar
  6. Chelebaeva A.I. and Shanzer A.E. (1988) A new data on Early Paleogene of Western Kamchatka. The lithology and stratigraphy of the Mesozoie and Cenozoic in Eastern regions of the USSR. Moscow: 135–148 [in Russian].Google Scholar
  7. Gladenkov Yu.B. et al. (1985) Paleogene of Kamchatka. The correlation of Cenozoic sediments of the Far East 1. Moscow: 45–55 [in Russian].Google Scholar
  8. Gladenkov Yu.B. et al. (1989) The Paleogene stratigraphical scheme of the Far East. Cenozoic of the Far East: 161–168. Vladivostok [in Russian].Google Scholar
  9. Grinenko O.V. et al. (1989) Paleogene and Neogene of the North-Eastern USSR. Yakutsk [in Russian].Google Scholar
  10. Herendeen P.S. (1992) The fossil history of the Leguminosae from the Eocene of Southeastern North America. Advances in Legume systematics 4 the fossil record. Royal Botanical Gardens, Kew: 85–160.Google Scholar
  11. Kryshtofoeich L.V. (1947) Stratigraphy and fauna of the Tighil Series on The Western coast of Kamchatka. VNIGRI Annals, new ser. 23. Leningrad [in Russian].Google Scholar
  12. Kryshtofovich A.N. (1958) The fossil floras of the Penzhin Bay, Tastakh Lake and Rarytkin Range. Komarov Bot. Inst. Acta, ser. 8, Paleobotanica 3: 75–121 [in Russian].Google Scholar
  13. Shanzer A.E. et al. (1985) An Eocene tectonic episode in the North-East of Kamchatka and its stratigraphical signieance. The correlation of Cenozoic sediments of the Far East, part 1: 19–44. Moscow [in Russian].Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1994

Authors and Affiliations

  • L. Yu. Budantsev
    • 1
  1. 1.Department of PalaeobotanyKomarov Botanical InstituteSt.PetersburgRussia

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