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24 October 2019 Late Pleistocene Fish Remains from the Rurubu River, Tanzania
Kathlyn M. Stewart, Oleksandr M. Kovalchuk, Olga A. Goskova, Nataliya V. Pogodina
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Abstract

A collection of fish bones was recovered from upper Pleistocene (Gamblian) deposits near the confluence of the Kagera and Rurubu rivers in Tanzania, west of Lake Victoria. The Rurubu/Kagera bones include two families: the Clariidae (Clarias gariepinus, Clarias sp.) and Cichlidae (tribes Oreochromini, Haplochromini; Oreochromis sp.). Geological, paleontological, and molecular data presented here provide new insights into Pleistocene eastern African biogeography and into the evolution and past affiliations of the Rurubu/Kagera and Lake Victoria fish taxa. The data indicate that the Rurubu/Kagera taxa were descended from Miocene-aged populations in the Congo and/or Nile rivers. Data also suggest that the Rurubu/Kagera haplochromines may have been part of a shared Kagera River/Lake Victoria basin haplochromine clade, whose later members radiated into hundreds of species in Lake Victoria over the past approximately 15,000 years.

© by the Society of Vertebrate Paleontology
Kathlyn M. Stewart, Oleksandr M. Kovalchuk, Olga A. Goskova, and Nataliya V. Pogodina "Late Pleistocene Fish Remains from the Rurubu River, Tanzania," Journal of Vertebrate Paleontology 39(3), (24 October 2019). https://doi.org/10.1080/02724634.2019.1639055
Received: 10 March 2019; Accepted: 27 May 2019; Published: 24 October 2019
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