干旱区生态环境知识资源中心(Arid): Continental palynomorphs from the Dabaa Formation, North-Western Desert, Egypt: a contribution to the reconstruction of the vegetation on the southern shores of the Tethys Ocean during the Early Oligocene

Arid

DOI	10.1093/botlinnean/boab024
	Continental palynomorphs from the Dabaa Formation, North-Western Desert, Egypt: a contribution to the reconstruction of the vegetation on the southern shores of the Tethys Ocean during the Early Oligocene
	El Atfy, Haytham; El Beialy, Salah Y.; El Khoriby, Essam M.; Uhl, Dieter
通讯作者	El Atfy, H (corresponding author), Eberhard Karls Univ Tubingen, Inst Geowissensch, D-72076 Tubingen, Germany. ; El Atfy, H (corresponding author), Mansoura Univ, Fac Sci, Dept Geol, Mansoura 35516, Egypt.
来源期刊	BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN	0024-4074
EISSN	1095-8339
出版年	2021
卷号	197 期号:3 页码:291-321
英文摘要	The Eocene-Oligocene transition period was marked by one of the most abrupt and severe global environmental changes in the Cenozoic record, and this had a marked influence on the evolution of a number of animal and plant groups and entire ecosystems. This study documents continental palynomorphs recovered from the sedimentary rocks of the Dabaa Formation (Qattara area, North-Western Desert, Egypt) located on the southern shore of the Tethys Ocean and dated as Late Eocene-Early Oligocene. The botanical affinities, (phyto)ecology and distribution of the vegetation during the Eocene-Oligocene of the study area are discussed. The recorded assemblages are well preserved and comprise diverse lineages of algae, spores and pollen. They were identified, illustrated and assigned to 46 families encompassing chlorococcalean algae, lycopods, ferns, gymnosperms and angiosperms. The studied assemblages demonstrate the development of tropical vegetation, including tropical deciduous forest, grassland and (semi-)arid tropical shrubland, in which angiosperms were one of the main representatives; additionally open, drier habitats might have existed in the hinterland. Our data have been combined with previous megafossil and palynological evidence to assess and refine vegetation changes during the Early Oligocene time window in Egypt and across North Africa. Vegetation was a mosaic of different vegetation belts that ran more-or-less parallel to the coastline of the Tethys Ocean under the variable geographical influence of lagoons and streams. It is assumed that the belt of tropical forest along the coast of the Tethys Ocean narrowed during the Oligocene in parallel to climatic deterioration following the Eocene-Oligocene boundary, which may have also led to the fractionation of forest habitats.
英文关键词	Africa ecosystem Fayum Palaeoclimate Palaeoenvironment palynology Qattara
类型	Review
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000715354000001
WOS关键词	CAIRO PETRIFIED FOREST ; MIDDLE EOCENE ; EARLY MIOCENE ; PALEOENVIRONMENTAL SHIFTS ; DINOFLAGELLATE CYSTS ; TERTIARY PALYNOLOGY ; QATTARA DEPRESSION ; WOOD FLORA ; NILE DELTA ; BASIN
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367882
作者单位	[El Atfy, Haytham] Eberhard Karls Univ Tubingen, Inst Geowissensch, D-72076 Tubingen, Germany; [El Atfy, Haytham; El Beialy, Salah Y.; El Khoriby, Essam M.] Mansoura Univ, Fac Sci, Dept Geol, Mansoura 35516, Egypt; [Uhl, Dieter] Senckenberg Forsch Inst & Nat Museum Frankfurt, D-60325 Frankfurt, Germany
推荐引用方式 GB/T 7714	El Atfy, Haytham,El Beialy, Salah Y.,El Khoriby, Essam M.,et al. Continental palynomorphs from the Dabaa Formation, North-Western Desert, Egypt: a contribution to the reconstruction of the vegetation on the southern shores of the Tethys Ocean during the Early Oligocene[J],2021,197(3):291-321.
APA	El Atfy, Haytham,El Beialy, Salah Y.,El Khoriby, Essam M.,&Uhl, Dieter.(2021).Continental palynomorphs from the Dabaa Formation, North-Western Desert, Egypt: a contribution to the reconstruction of the vegetation on the southern shores of the Tethys Ocean during the Early Oligocene.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,197(3),291-321.
MLA	El Atfy, Haytham,et al."Continental palynomorphs from the Dabaa Formation, North-Western Desert, Egypt: a contribution to the reconstruction of the vegetation on the southern shores of the Tethys Ocean during the Early Oligocene".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 197.3(2021):291-321.