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. 2019 Mar 25;14(3):e0214225. doi: 10.1371/journal.pone.0214225

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© 2019 de Oliveira et al

This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Fig 1 — Distribution areas of extant Arapaimidae species (red) and the currently described fossil records (crosses). The fossil records are based on descriptions reported by [4,9,22–27]. The sampling sites are marked by triangle for Arapaima gigas (Brazil) and square for Heterotis niloticus (Nigeria).