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Ants (Hymenoptera: Formicidae) from Miocene Ethiopian amber: filling gaps in the geological record of African terrestrial biota

Abstract : The Early Miocene (16–23 Mya) amber of Ethiopia constitutes a new source of fossil ants for Africa, where they are otherwise poorly documented. Here we report a diversified assemblage of six subfamilies and at least 19 genera that are still predominantly alive in the Afrotropics today. In this first account, a particular reference is made to the subfamily Dolichoderinae, with the description of two new species: Technomyrmex svojtkai Perrichot & Engel sp. nov. and Ravavy goldmani Boudinot & Perrichot sp. nov. The first is illustrated and described based on synchrotron-radiation microcomputed tomography, and the second represents the first fossil record for the tribe Bothriomyrmecini and Ravavy, a Malagasy and Afrotropical genus that was hitherto monotypic. The ant composition in Ethiopian amber is congruent with the global pattern emerging across ants and showing a Neogene diversification almost exclusively within extant genera.
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https://hal-insu.archives-ouvertes.fr/insu-03734903
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Submitted on : Thursday, July 21, 2022 - 12:29:56 PM
Last modification on : Friday, July 22, 2022 - 4:03:58 AM

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Vincent Perrichot, Brendon Boudinot, Michael Engel, Chunpeng Xu, Błażej Bojarski, et al.. Ants (Hymenoptera: Formicidae) from Miocene Ethiopian amber: filling gaps in the geological record of African terrestrial biota. Zoological Journal of the Linnean Society, Linnean Society of London, 2022, pp.zlac053. ⟨10.1093/zoolinnean/zlac053⟩. ⟨insu-03734903⟩

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