Persistence of Gondwanan woods in Myanmar through the Palaeogene

These taxa likely dispersed during the early Paleogene from Africa to India and Myanmar, forming what we refer to as the Indo-Myanmar Paleogene floristic province. This province, which had Gondwanan affinities, persisted at least until the early Oligocene, time of suggested land connection with Asia, and served as a 'holding pen' for the further dispersal of some taxa into Southeast Asia, such as the Dipterocarps. However, other taxa, such as those documented in this study, did not disperse further and eventually disappeared during the Neogene. The mechanisms behind these dispersal barriers and the reasons for the eventual disappearance of these taxa from the region are still to be investigated, and could be related to the late Cenozoic changes in monsoonal climate of South Asia.

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Publication Details

Journal
Annals of Botany
Published
2025-08-25
DOI
https://doi.org/10.1093/aob/mcaf190
Primary Topic
Plant Diversity and Evolution
Type
article
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article

Persistence of Gondwanan woods in Myanmar through the Palaeogene

Guillaume Dupont‐Nivet, Dario De Franceschi, Alexis Licht, Nicolas Gentis et al.
Annals of Botany
Plant Diversity and Evolution
article

Persistence of Gondwanan woods in Myanmar through the Palaeogene

Guillaume Dupont‐Nivet, Dario De Franceschi, Alexis Licht, Nicolas Gentis, Anaïs Boura, Zaw Win, Day Wa Aung, Lény Montheil
article en

Abstract

These taxa likely dispersed during the early Paleogene from Africa to India and Myanmar, forming what we refer to as the Indo-Myanmar Paleogene floristic province. This province, which had Gondwanan affinities, persisted at least until the early Oligocene, time of suggested land connection with Asia, and served as a 'holding pen' for the further dispersal of some taxa into Southeast Asia, such as the Dipterocarps. However, other taxa, such as those documented in this study, did not disperse further and eventually disappeared during the Neogene. The mechanisms behind these dispersal barriers and the reasons for the eventual disappearance of these taxa from the region are still to be investigated, and could be related to the late Cenozoic changes in monsoonal climate of South Asia.

Annals of Botany
Centre National de la Recherche Scientifique (FR), Saga University (JP), Sorbonne Université (FR), Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR), Géosciences Rennes (FR), Centre de Recherche et d’Enseignement de Géosciences de l’Environnement (FR), University of Pharmacy Yangon (MM), GFZ Helmholtz Centre for Geosciences (DE), Institut de Recherche pour le Développement (FR), Structure et Instabilité des Génomes (FR), University of Yangon (MM)
Openalex Percentile: Top 82%
Plant Diversity and Evolution
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Persistence of Gondwanan woods in Myanmar through the Palaeogene — Guillaume Dupont‐Nivet, Dario De Franceschi, et al. · Annals of Botany (2025) | TGRS Research Map | TGRS