Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B
The distribution of calcareous dinoflagellates has been analysed for the Maastrichtian-Miocene interval of Ocean Drilling Project Hole 689B (Maud Rise, Weddell Sea). The investigation thus represents a primary evaluation of the long-term evolution in high-latitude calcareous dinoflagellate assemblag...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.705301 2024-09-15T17:41:28+00:00 Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B Hildebrand-Habel, Tania Streng, Michael LATITUDE: -64.517000 * LONGITUDE: 3.099900 * DATE/TIME START: 1987-01-16T08:00:00 * DATE/TIME END: 1987-01-18T06:45:00 2003 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.705301 https://doi.org/10.1594/PANGAEA.705301 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.705301 https://doi.org/10.1594/PANGAEA.705301 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Hildebrand-Habel, Tania; Streng, Michael (2003): Calcareous dinoflagellate associations and Maastrichtian–Tertiary climatic change in a high-latitude core (ODP Hole 689B, Maud Rise, Weddell Sea). Palaeogeography, Palaeoclimatology, Palaeoecology, 197(3-4), 293-321, https://doi.org/10.1016/S0031-0182(03)00470-X 113-689B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean dataset publication series 2003 ftpangaea https://doi.org/10.1594/PANGAEA.70530110.1016/S0031-0182(03)00470-X 2024-07-24T02:31:42Z The distribution of calcareous dinoflagellates has been analysed for the Maastrichtian-Miocene interval of Ocean Drilling Project Hole 689B (Maud Rise, Weddell Sea). The investigation thus represents a primary evaluation of the long-term evolution in high-latitude calcareous dinoflagellate assemblages during the transition from a relatively warm Late Cretaceous to a cold Neogene climate. Major assemblage changes during this interval occurred in characteristic steps: (1) an increase in relative abundance of tangentially structured species - particularly Operculodinella operculata - at the Cretaceous/Tertiary boundary; (2) a diversity decrease and several first and last appearances across the Middle-Late Eocene boundary, possibly attributed to increased climate cooling; (3) a diversity decrease associated with the dominance of Calciodinellum levantinum in the late Early Oligocene; (4) the reappearance and dominance of Pirumella edgarii in the Early Miocene, probably reflecting a warming trend; (5) monogeneric assemblages dominated by Caracomia spp. denoting strong Middle Miocene cooling. The results not only extend the biogeographic ranges of many taxa into the Antarctic region, but also indicate that the evolution of high-latitude calcareous dinoflagellate assemblages parallels the changing environmental conditions in the course of the Cenozoic climate transition. Therefore, calcareous dinoflagellates contribute to our understanding of the biotic effects associated with palaeoenvironmental changes and might possess the potential for reconstructing past conditions. The flora in the core includes one new taxon: Caracomia arctica forma spinosa Hildebrand-Habel and Streng, forma nov. Additionally, two new combinations are proposed: Fuettererella deflandrei (Kamptner, 1956) Hildebrand-Habel and Streng, comb. nov. and Fuettererella flora (Fuetterer, 1990) Hildebrand-Habel and Streng, comb. nov. Other/Unknown Material Antarc* Antarctic South Atlantic Ocean Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(3.099900,3.099900,-64.517000,-64.517000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-689B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean |
spellingShingle |
113-689B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean Hildebrand-Habel, Tania Streng, Michael Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B |
topic_facet |
113-689B DRILL Drilling/drill rig Joides Resolution Leg113 Ocean Drilling Program ODP South Atlantic Ocean |
description |
The distribution of calcareous dinoflagellates has been analysed for the Maastrichtian-Miocene interval of Ocean Drilling Project Hole 689B (Maud Rise, Weddell Sea). The investigation thus represents a primary evaluation of the long-term evolution in high-latitude calcareous dinoflagellate assemblages during the transition from a relatively warm Late Cretaceous to a cold Neogene climate. Major assemblage changes during this interval occurred in characteristic steps: (1) an increase in relative abundance of tangentially structured species - particularly Operculodinella operculata - at the Cretaceous/Tertiary boundary; (2) a diversity decrease and several first and last appearances across the Middle-Late Eocene boundary, possibly attributed to increased climate cooling; (3) a diversity decrease associated with the dominance of Calciodinellum levantinum in the late Early Oligocene; (4) the reappearance and dominance of Pirumella edgarii in the Early Miocene, probably reflecting a warming trend; (5) monogeneric assemblages dominated by Caracomia spp. denoting strong Middle Miocene cooling. The results not only extend the biogeographic ranges of many taxa into the Antarctic region, but also indicate that the evolution of high-latitude calcareous dinoflagellate assemblages parallels the changing environmental conditions in the course of the Cenozoic climate transition. Therefore, calcareous dinoflagellates contribute to our understanding of the biotic effects associated with palaeoenvironmental changes and might possess the potential for reconstructing past conditions. The flora in the core includes one new taxon: Caracomia arctica forma spinosa Hildebrand-Habel and Streng, forma nov. Additionally, two new combinations are proposed: Fuettererella deflandrei (Kamptner, 1956) Hildebrand-Habel and Streng, comb. nov. and Fuettererella flora (Fuetterer, 1990) Hildebrand-Habel and Streng, comb. nov. |
format |
Other/Unknown Material |
author |
Hildebrand-Habel, Tania Streng, Michael |
author_facet |
Hildebrand-Habel, Tania Streng, Michael |
author_sort |
Hildebrand-Habel, Tania |
title |
Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B |
title_short |
Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B |
title_full |
Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B |
title_fullStr |
Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B |
title_full_unstemmed |
Calcareous dinoflagellates in Maastrichtian-Tertiary sediments of ODP Hole 113-689B |
title_sort |
calcareous dinoflagellates in maastrichtian-tertiary sediments of odp hole 113-689b |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.705301 https://doi.org/10.1594/PANGAEA.705301 |
op_coverage |
LATITUDE: -64.517000 * LONGITUDE: 3.099900 * DATE/TIME START: 1987-01-16T08:00:00 * DATE/TIME END: 1987-01-18T06:45:00 |
long_lat |
ENVELOPE(3.099900,3.099900,-64.517000,-64.517000) |
genre |
Antarc* Antarctic South Atlantic Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic South Atlantic Ocean Weddell Sea |
op_source |
Supplement to: Hildebrand-Habel, Tania; Streng, Michael (2003): Calcareous dinoflagellate associations and Maastrichtian–Tertiary climatic change in a high-latitude core (ODP Hole 689B, Maud Rise, Weddell Sea). Palaeogeography, Palaeoclimatology, Palaeoecology, 197(3-4), 293-321, https://doi.org/10.1016/S0031-0182(03)00470-X |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.705301 https://doi.org/10.1594/PANGAEA.705301 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.70530110.1016/S0031-0182(03)00470-X |
_version_ |
1810487657121185792 |