The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany
The morphologically conspicuous bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822), known for its palaeogeographically bipolar distribution, from a limestone bed in the boundary “Belemniten–Schichten”/Amaltheenton formation, Lower Jurassic, in N Germany is described. The occurrence of t...
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ftsubggeo:oai:e-docs.geo-leo.de:11858/6813 2024-06-09T07:44:07+00:00 The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany Arp, Gernot Seppelt, Stephan 2011 application/pdf https://doi.org/10.1007/s12542-011-0113-1 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6813 eng eng Springer-Verlag Berlin/Heidelberg 0031-0220 1867-6812 doi:10.1007/s12542-011-0113-1 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6813 openAccess http://goedoc.uni-goettingen.de/goescholar/License_Goedoc_2009_03.txt ddc:551 doc-type:article publishedVersion 2011 ftsubggeo https://doi.org/10.1007/s12542-011-0113-1 2024-05-10T04:58:21Z The morphologically conspicuous bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822), known for its palaeogeographically bipolar distribution, from a limestone bed in the boundary “Belemniten–Schichten”/Amaltheenton formation, Lower Jurassic, in N Germany is described. The occurrence of this palaeoceanographically significant bivalve points to an influx of cool seawater from the Arctic to the North-German Basin at the base of the Upper Pliensbachian, just before the deposition of the Amaltheenton formation. A review of previously reported occurrences on the NW European Shelf indicates two distinct stratigraphic intervals of occurrence of this taxon: the Rhaetian–Hettangian boundary and the Upper Pliensbachian. Whereas the former interval of occurrence may be related to short-term cooling in the course of the end-Triassic extinction event, the latter is interpreted as reflecting the influx of a cool water current to the eastern part of the NW European Shelf, which continued southwards parallel to the coast of the Bohemian–Vindelician High. Article in Journal/Newspaper Arctic GEO-LEOe-docs (FID GEO) Arctic Paläontologische Zeitschrift 86 1 43 57 |
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GEO-LEOe-docs (FID GEO) |
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English |
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ddc:551 |
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ddc:551 Arp, Gernot Seppelt, Stephan The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany |
topic_facet |
ddc:551 |
description |
The morphologically conspicuous bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822), known for its palaeogeographically bipolar distribution, from a limestone bed in the boundary “Belemniten–Schichten”/Amaltheenton formation, Lower Jurassic, in N Germany is described. The occurrence of this palaeoceanographically significant bivalve points to an influx of cool seawater from the Arctic to the North-German Basin at the base of the Upper Pliensbachian, just before the deposition of the Amaltheenton formation. A review of previously reported occurrences on the NW European Shelf indicates two distinct stratigraphic intervals of occurrence of this taxon: the Rhaetian–Hettangian boundary and the Upper Pliensbachian. Whereas the former interval of occurrence may be related to short-term cooling in the course of the end-Triassic extinction event, the latter is interpreted as reflecting the influx of a cool water current to the eastern part of the NW European Shelf, which continued southwards parallel to the coast of the Bohemian–Vindelician High. |
format |
Article in Journal/Newspaper |
author |
Arp, Gernot Seppelt, Stephan |
author_facet |
Arp, Gernot Seppelt, Stephan |
author_sort |
Arp, Gernot |
title |
The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany |
title_short |
The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany |
title_full |
The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany |
title_fullStr |
The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany |
title_full_unstemmed |
The bipolar bivalve Oxytoma (Palmoxytoma) cygnipes (Young & Bird, 1822) in the Upper Pliensbachian of Germany |
title_sort |
bipolar bivalve oxytoma (palmoxytoma) cygnipes (young & bird, 1822) in the upper pliensbachian of germany |
publisher |
Springer-Verlag |
publishDate |
2011 |
url |
https://doi.org/10.1007/s12542-011-0113-1 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6813 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
0031-0220 1867-6812 doi:10.1007/s12542-011-0113-1 http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/6813 |
op_rights |
openAccess http://goedoc.uni-goettingen.de/goescholar/License_Goedoc_2009_03.txt |
op_doi |
https://doi.org/10.1007/s12542-011-0113-1 |
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Paläontologische Zeitschrift |
container_volume |
86 |
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1 |
container_start_page |
43 |
op_container_end_page |
57 |
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1801372909133889536 |