Biochronology and evolution of Pulleniatina (planktonic foraminifera)
Pulleniatina is an extant genus of planktonic foraminifera that evolved in the late Miocene. The bottom and top occurrences of its six constituent morphospecies ( P. primalis , P. praespectablis , P. spectabilis , P. praecursor , P. obliquiloculata , P. finalis ) provide a series of more or less use...
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ftcopernicus:oai:publications.copernicus.org:jm111504 2024-09-09T20:04:01+00:00 Biochronology and evolution of Pulleniatina (planktonic foraminifera) Pearson, Paul N. Young, Jeremy King, David J. Wade, Bridget S. 2023-11-22 application/pdf https://doi.org/10.5194/jm-42-211-2023 https://jm.copernicus.org/articles/42/211/2023/ eng eng doi:10.5194/jm-42-211-2023 https://jm.copernicus.org/articles/42/211/2023/ eISSN: 2041-4978 Text 2023 ftcopernicus https://doi.org/10.5194/jm-42-211-2023 2024-08-28T05:24:15Z Pulleniatina is an extant genus of planktonic foraminifera that evolved in the late Miocene. The bottom and top occurrences of its six constituent morphospecies ( P. primalis , P. praespectablis , P. spectabilis , P. praecursor , P. obliquiloculata , P. finalis ) provide a series of more or less useful constraints for correlating tropical and subtropical deep-sea deposits, as do some prominent changes in its dominant coiling direction and a substantial gap in its record in the Atlantic Ocean. Biostratigraphic information about these events has accumulated over many decades since the development of systematic deep-sea drilling in the 1960s, during which time the geochronological framework has evolved substantially, as have taxonomic concepts. Here we present new data on the biochronology of Pulleniatina from International Ocean Discovery Program Site U1488, which has a record of its entire evolutionary history from the centre of its geographic range in the Western Pacific Warm Pool. We then present and compare revised calibrations of 183 published Pulleniatina bioevents worldwide, with stated sampling errors as far as they are known, using a consistent methodology and in the context of an updated evolutionary model for the genus. We comment on the reliability of the various bioevents; their likely level of diachrony; and the processes of evolution, dispersal, and extinction that produced them. Text Planktonic foraminifera Copernicus Publications: E-Journals Pacific Journal of Micropalaeontology 42 2 211 255 |
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Copernicus Publications: E-Journals |
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English |
description |
Pulleniatina is an extant genus of planktonic foraminifera that evolved in the late Miocene. The bottom and top occurrences of its six constituent morphospecies ( P. primalis , P. praespectablis , P. spectabilis , P. praecursor , P. obliquiloculata , P. finalis ) provide a series of more or less useful constraints for correlating tropical and subtropical deep-sea deposits, as do some prominent changes in its dominant coiling direction and a substantial gap in its record in the Atlantic Ocean. Biostratigraphic information about these events has accumulated over many decades since the development of systematic deep-sea drilling in the 1960s, during which time the geochronological framework has evolved substantially, as have taxonomic concepts. Here we present new data on the biochronology of Pulleniatina from International Ocean Discovery Program Site U1488, which has a record of its entire evolutionary history from the centre of its geographic range in the Western Pacific Warm Pool. We then present and compare revised calibrations of 183 published Pulleniatina bioevents worldwide, with stated sampling errors as far as they are known, using a consistent methodology and in the context of an updated evolutionary model for the genus. We comment on the reliability of the various bioevents; their likely level of diachrony; and the processes of evolution, dispersal, and extinction that produced them. |
format |
Text |
author |
Pearson, Paul N. Young, Jeremy King, David J. Wade, Bridget S. |
spellingShingle |
Pearson, Paul N. Young, Jeremy King, David J. Wade, Bridget S. Biochronology and evolution of Pulleniatina (planktonic foraminifera) |
author_facet |
Pearson, Paul N. Young, Jeremy King, David J. Wade, Bridget S. |
author_sort |
Pearson, Paul N. |
title |
Biochronology and evolution of Pulleniatina (planktonic foraminifera) |
title_short |
Biochronology and evolution of Pulleniatina (planktonic foraminifera) |
title_full |
Biochronology and evolution of Pulleniatina (planktonic foraminifera) |
title_fullStr |
Biochronology and evolution of Pulleniatina (planktonic foraminifera) |
title_full_unstemmed |
Biochronology and evolution of Pulleniatina (planktonic foraminifera) |
title_sort |
biochronology and evolution of pulleniatina (planktonic foraminifera) |
publishDate |
2023 |
url |
https://doi.org/10.5194/jm-42-211-2023 https://jm.copernicus.org/articles/42/211/2023/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
eISSN: 2041-4978 |
op_relation |
doi:10.5194/jm-42-211-2023 https://jm.copernicus.org/articles/42/211/2023/ |
op_doi |
https://doi.org/10.5194/jm-42-211-2023 |
container_title |
Journal of Micropalaeontology |
container_volume |
42 |
container_issue |
2 |
container_start_page |
211 |
op_container_end_page |
255 |
_version_ |
1809936036170563584 |