Migration routes of the genus Buntonia Howe, 1935 (Ostracoda, Crustacea) during the Late Cretaceous–Paleogene in Africa
作者： Ashraf Mohamed Tawfik Elewa , Ahmed Awad Abdelhady , None
DOI: 10.1007/S12517-020-06203-Y
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摘要: Buntonia is a common genus in the Maastrichtian to Late Eocene basins of Africa. Analysis similarity (ANOSIM), hierarchical clustering (HC), and non-metric multidimensional scaling (nMDS) were used analyze geographic pattern species based on presence/absence matrix 42 species. The Jaccard-based HC shows that African countries can be subdivided into three main bioregions: North Africa (Algeria, Libya, Tunisia, Morocco, Sudan), West (Mali, Togo, Benin, Cote d’Ivoire, Senegal, Ghana, Gambia, Nigeria, Cameron, Mauritania), South (Namibia Africa). ANOSIM indicated non-significant difference between Southern However, significant was found (sequential Bonferroni corrected p < 0.01). These patterns are well-characterized also by both nMDS. Moreover, analyses stratigraphic ranges revealed distinct range shift within regions Guinean Gulf (Togo, d’Ivoire) through Senegal towards latter indicates two possible migration routes from Trans-Saharan seaway Atlantic Tethyan Sea. Migration region played an important role distribution studied rather than origination new and/or extinction existing
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