Cenozoic Ampelopsis and Nekemias leaves (Vitaceae, Ampelopsideae) from Eurasia: Paleobiogeographic and paleoclimatic implications
Tosal, Aixa (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà)
Vicente, Alba 1985- (Institut Català de Paleontologia Miquel Crusafont)
Denk, Thomas (Swedish Museum of Natural History)

Data:	2025
Resum:	We describe a new species of Ampelopsideae (Vitaceae), Nekemias mucronata sp. nov. , from the Rupelian of Cervera (Spain) and revise another fossil species, Ampelopsis hibschii, originally described from Germany. Comparison with extant Ampelopsideae suggests that the North American species Nekemias arborea is most similar to Nekemias mucronata while the East Mediterranean Ampelopsis orientalis is the closest living relative of A. hibschii. Our review of fossil data indicates that, during the Eocene, four species of Ampelopsideae occurred in Eurasia, that is, N. mucronata in the Czech Republic, A. hibschii in Kazakhstan, and two fossil species in the Far East (Ampelopsis cercidifolia and Ampelopsis protoheterophylla). In the Oligocene, a new species, Ampelopsis schischkinii, appeared in Kazakhstan; meanwhile, N. mucronata spread eastwards and southwards, and A. hibschii mainly grew in Central Europe. In the late Oligocene, N. mucronata became a relict in the Iberian Peninsula and Nekemias might have persisted in Western Eurasia until the latest Miocene ("Ampelopsis" abkhasica). The last occurrence of A. hibschii was in the Middle Miocene in Bulgaria, probably a refuge of humid temperate taxa, along with Ampelopsis aff. cordata. Carpological remains suggest that this lineage persisted in Europe at least until the Pleistocene. Our data confirm previous notions of the North Atlantic and Bering land bridges being important dispersal routes for Ampelopsideae. However, such dispersion probably occurred during the Paleogene rather than the Neogene, as previously suggested. A single species of Ampelopsideae, A. orientalis, has survived in Western Eurasia, which appears to have been linked to a biome shift.
Ajuts:	European Commission 823827 Agencia Estatal de Investigación PID2020-113912GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2022/SGR-349 Agència de Gestió d'Ajuts Universitaris i de Recerca 2022/BP-00179
Drets:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Llengua:	Anglès
Document:	Article ; recerca ; Versió publicada
Matèria:	Cenozoic ; Leaf fossils ; Paleobiogeography ; Paleoclimate ; Vitaceae ; Western Eurasia
Publicat a:	Journal of Systematics and Evolution, Vol. 63, issue 2 (March 2025) , p. 379-400, ISSN 1759-6831

DOI: 10.1111/jse.13126

22 p, 5.1 MB

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