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Possible species-flock scenario for the evolution of the cyprinid genus Capoeta (Cypriniformes: Cyprinidae) within late Neogene lake systems of the Armenian Highland

  • Ayvazyan, Anna Department of Geosciences, Eberhard-Karls-University Tübingen, Tübingen, Germany, Senckenberg Center for Human Evolution and Palaeoenvironment (HEP), Tübingen, Germany
  • Vasilyan, Davit JURASSICA Museum, Porrentruy, Switzerland - Department of Geosciences, University of Fribourg, Fribourg, Switzerland
  • Böhme, Madelaine Department of Geosciences, Eberhard-Karls-University Tübingen, Tübingen, Germany, Senckenberg Center for Human Evolution and Palaeoenvironment (HEP), Tübingen, Germany
  • 08.05.2019
Published in:
  • PLOS ONE. - 2019, vol. 14, no. 5, p. e0215543
English We studied 4 Ma old isolated pharyngeal teeth from lake sediments of Çevirme (Tekman Palaeolake, Erzurum Province). Based on shape characters defined for 3D models of modern species, we found that the Pliocene lake constitutes sympatric occurrence of four Capoeta species (C. cf. umbla, C. cf. baliki, C. cf. sieboldi and C. sp. sevangi/capoeta), whose modern relatives belong to a monophyletic clade inhabiting today three different drainage systems of this region (Euphrates River, Kura River and Black Sea). We interpreted this high local diversity of closely related species in terms of the species-flock model. The Tekman palaeolake was a part of an unrecognized extended late Miocene to Pliocene palaeolake system in the present- day Armenian Highland, which has been disrupted by Pliocene tectonic activities. Surface uplift of the Armenian Highland contributed to the very characteristic biogeographic distribution and endemism of Capoeta in West Asian drainage systems. Thus, we proposed a species-flock scenario for the evolution and dispersal of the cyprinid genus Capoeta in a huge unrecognized palaeolake system in the present-day Armenian Highland.
Faculty
Faculté des sciences et de médecine
Department
Département de Géosciences
Language
  • English
Classification
Palaeontology
License
License undefined
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Persistent URL
https://folia.unifr.ch/unifr/documents/307973
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