Species Formation Through Punctuated Gradualism in Planktonic Foraminifera
Detailed analysis of evolutionary changes in a 10-million-year long Late Neogene lineage of planktonic foraminifera has revealed a pattern that is not consistent with either the gradualistic or the punctuational model of evolution. The lineage was in stasis over a considerable part of its total dura...
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American Association for the Advancement of Science (AAAS)
1984
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Online Access: | http://dx.doi.org/10.1126/science.225.4659.317 https://www.science.org/doi/pdf/10.1126/science.225.4659.317 |
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craaas:10.1126/science.225.4659.317 2024-06-09T07:49:05+00:00 Species Formation Through Punctuated Gradualism in Planktonic Foraminifera Malmgren, Björn A. Berggren, W. A. Lohmann, G. P. 1984 http://dx.doi.org/10.1126/science.225.4659.317 https://www.science.org/doi/pdf/10.1126/science.225.4659.317 en eng American Association for the Advancement of Science (AAAS) Science volume 225, issue 4659, page 317-319 ISSN 0036-8075 1095-9203 journal-article 1984 craaas https://doi.org/10.1126/science.225.4659.317 2024-05-16T12:55:41Z Detailed analysis of evolutionary changes in a 10-million-year long Late Neogene lineage of planktonic foraminifera has revealed a pattern that is not consistent with either the gradualistic or the punctuational model of evolution. The lineage was in stasis over a considerable part of its total duration but underwent relatively rapid, but not geologically instantaneous, gradual morphologic change that did not lead to lineage splitting. The term punctuated gradualism is suggested for this evolutionary modality. Article in Journal/Newspaper Planktonic foraminifera AAAS Resource Center (American Association for the Advancement of Science) Science 225 4659 317 319 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Detailed analysis of evolutionary changes in a 10-million-year long Late Neogene lineage of planktonic foraminifera has revealed a pattern that is not consistent with either the gradualistic or the punctuational model of evolution. The lineage was in stasis over a considerable part of its total duration but underwent relatively rapid, but not geologically instantaneous, gradual morphologic change that did not lead to lineage splitting. The term punctuated gradualism is suggested for this evolutionary modality. |
format |
Article in Journal/Newspaper |
author |
Malmgren, Björn A. Berggren, W. A. Lohmann, G. P. |
spellingShingle |
Malmgren, Björn A. Berggren, W. A. Lohmann, G. P. Species Formation Through Punctuated Gradualism in Planktonic Foraminifera |
author_facet |
Malmgren, Björn A. Berggren, W. A. Lohmann, G. P. |
author_sort |
Malmgren, Björn A. |
title |
Species Formation Through Punctuated Gradualism in Planktonic Foraminifera |
title_short |
Species Formation Through Punctuated Gradualism in Planktonic Foraminifera |
title_full |
Species Formation Through Punctuated Gradualism in Planktonic Foraminifera |
title_fullStr |
Species Formation Through Punctuated Gradualism in Planktonic Foraminifera |
title_full_unstemmed |
Species Formation Through Punctuated Gradualism in Planktonic Foraminifera |
title_sort |
species formation through punctuated gradualism in planktonic foraminifera |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
1984 |
url |
http://dx.doi.org/10.1126/science.225.4659.317 https://www.science.org/doi/pdf/10.1126/science.225.4659.317 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
Science volume 225, issue 4659, page 317-319 ISSN 0036-8075 1095-9203 |
op_doi |
https://doi.org/10.1126/science.225.4659.317 |
container_title |
Science |
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225 |
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4659 |
container_start_page |
317 |
op_container_end_page |
319 |
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1801381233321574400 |