caa a22 4500 475827775 CHVBK 20180406123833.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/s005310050298 doi (NATIONALLICENCE)springer-10.1007/s005310050298 Distribution of calcareous dinoflagellates from the Maastrichtian to early Miocene of DSDP Site 357 (Rio Grande Rise, western South Atlantic Ocean) [Elektronische Daten] [T. Hildebrand-Habel, H. Willems]  The evolution of calcareous dinoflagellate communities has been investigated for the latest Cretaceous to earliest Neogene interval of the mid-latitude South Atlantic. In doing so, the response of calcareous dinoflagellates to Cenozoic climatic change has been addressed for the first time. Trends in species composition and distribution patterns of wall types indicate significant changes which correlate with major palaeoenvironmental modifications. A first major shift concerning the relative abundance of species and wall types occurred across the Cretaceous-Tertiary boundary. The associations remained stable during the entire Paleocene and Eocene. Only in the late Eocene did a dramatic decrease in temperature cause a slight diversification. A second major shift in the abundance patterns occurred across the Eocene-Oligocene boundary. The early Miocene warming is possibly reflected in the distinct increase in relative abundance of one species. The assemblages of calcareous dinoflagellates evidently react to major climatic changes during the Cenozoic. These poorly investigated organisms may thus provide an important contribution to the understanding of earth's palaeoclimatic evolution. Springer-Verlag Berlin Heidelberg, 2000 Key words Calcareous dinoflagellates nationallicence Cretaceous nationallicence Tertiary nationallicence K/T boundary nationallicence Eocene-Oligocene boundary nationallicence Climatic change nationallicence South Atlantic nationallicence Hildebrand-Habel T. Fachbereich Geowissenschaften, Universität Bremen, Postfach 330440, D-28334 Bremen, Germany e-mail: hiha@micropal.uni-bremen.de Tel.: +49 (0) 421-2183926 Fax: +49 (0) 421-2184451, DE aut Willems H. Fachbereich Geowissenschaften, Universität Bremen, Postfach 330440, D-28334 Bremen, Germany e-mail: hiha@micropal.uni-bremen.de Tel.: +49 (0) 421-2183926 Fax: +49 (0) 421-2184451, DE aut https://doi.org/10.1007/s005310050298 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005310050298 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hildebrand-Habel T. Fachbereich Geowissenschaften, Universität Bremen, Postfach 330440, D-28334 Bremen, Germany e-mail: hiha@micropal.uni-bremen.de Tel.: +49 (0) 421-2183926 Fax: +49 (0) 421-2184451, DE aut NATIONALLICENCE 700 1- Willems H. Fachbereich Geowissenschaften, Universität Bremen, Postfach 330440, D-28334 Bremen, Germany e-mail: hiha@micropal.uni-bremen.de Tel.: +49 (0) 421-2183926 Fax: +49 (0) 421-2184451, DE aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer