Hantkeninid depth adaptation: an evolving life strategy in a changing ocean
The interplay between evolution, paleoecology, and environmental change is examined in a geochemical study of a group of Eocene planktonic foraminifera. The hantkeninids, which are well-known biostratigraphic inde × fossils, underwent spectacular long-term evolution in the middle and upper Eocene (4...
Main Authors: | , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Geological Society of America
2000
|
Subjects: | |
Online Access: | https://orca.cardiff.ac.uk/id/eprint/15259/ https://doi.org/10.1130/0091-7613(2000)28<87:HDAAEL>2.0.CO;2 https://doi.org/10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 |
id |
ftunivcardiff:oai:https://orca.cardiff.ac.uk:15259 |
---|---|
record_format |
openpolar |
spelling |
ftunivcardiff:oai:https://orca.cardiff.ac.uk:15259 2023-05-15T18:00:47+02:00 Hantkeninid depth adaptation: an evolving life strategy in a changing ocean Coxall, Helen Kathrine Pearson, Paul Nicholas Shackleton, Nicholas J. Hall, Mike A. 2000-01 https://orca.cardiff.ac.uk/id/eprint/15259/ https://doi.org/10.1130/0091-7613(2000)28<87:HDAAEL>2.0.CO;2 https://doi.org/10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 unknown Geological Society of America Coxall, Helen Kathrine https://orca.cardiff.ac.uk/view/cardiffauthors/A007483I.html, Pearson, Paul Nicholas https://orca.cardiff.ac.uk/view/cardiffauthors/A0179150.html orcid:0000-0003-4628-9818 orcid:0000-0003-4628-9818, Shackleton, Nicholas J. and Hall, Mike A. 2000. Hantkeninid depth adaptation: an evolving life strategy in a changing ocean. Geology 28 (1) , pp. 87-90. 10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 https://doi.org/10.1130/0091-7613%282000%2928%3C87%3AHDAAEL%3E2.0.CO%3B2 doi:10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 GC Oceanography GE Environmental Sciences QE Geology Article PeerReviewed 2000 ftunivcardiff https://doi.org/10.1130/0091-7613(2000)28<87:HDAAEL>2.0.CO;2 https://doi.org/10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 2022-10-20T22:35:36Z The interplay between evolution, paleoecology, and environmental change is examined in a geochemical study of a group of Eocene planktonic foraminifera. The hantkeninids, which are well-known biostratigraphic inde × fossils, underwent spectacular long-term evolution in the middle and upper Eocene (49.0–33.7 Ma), a time when major global climate and oceanic changes were occurring. We use oxygen and carbon isotope analysis of their shell calcite to investigate how their habitat changed as they evolved. The hantkeninids originated in a deep-water oxygen-minimum environment, but migrated into fully oxygenated near-surface waters as global temperatures decreased and water-column stratification declined. This change in depth ecology coincided with pronounced morphological evolution, involving changes in chamber shape and degree of inflation, and modification of the primary aperture. These developments are considered to be adaptations to a near-surface habitat. Article in Journal/Newspaper Planktonic foraminifera Cardiff University: ORCA (Online Research @ Cardiff) |
institution |
Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
op_collection_id |
ftunivcardiff |
language |
unknown |
topic |
GC Oceanography GE Environmental Sciences QE Geology |
spellingShingle |
GC Oceanography GE Environmental Sciences QE Geology Coxall, Helen Kathrine Pearson, Paul Nicholas Shackleton, Nicholas J. Hall, Mike A. Hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
topic_facet |
GC Oceanography GE Environmental Sciences QE Geology |
description |
The interplay between evolution, paleoecology, and environmental change is examined in a geochemical study of a group of Eocene planktonic foraminifera. The hantkeninids, which are well-known biostratigraphic inde × fossils, underwent spectacular long-term evolution in the middle and upper Eocene (49.0–33.7 Ma), a time when major global climate and oceanic changes were occurring. We use oxygen and carbon isotope analysis of their shell calcite to investigate how their habitat changed as they evolved. The hantkeninids originated in a deep-water oxygen-minimum environment, but migrated into fully oxygenated near-surface waters as global temperatures decreased and water-column stratification declined. This change in depth ecology coincided with pronounced morphological evolution, involving changes in chamber shape and degree of inflation, and modification of the primary aperture. These developments are considered to be adaptations to a near-surface habitat. |
format |
Article in Journal/Newspaper |
author |
Coxall, Helen Kathrine Pearson, Paul Nicholas Shackleton, Nicholas J. Hall, Mike A. |
author_facet |
Coxall, Helen Kathrine Pearson, Paul Nicholas Shackleton, Nicholas J. Hall, Mike A. |
author_sort |
Coxall, Helen Kathrine |
title |
Hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
title_short |
Hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
title_full |
Hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
title_fullStr |
Hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
title_full_unstemmed |
Hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
title_sort |
hantkeninid depth adaptation: an evolving life strategy in a changing ocean |
publisher |
Geological Society of America |
publishDate |
2000 |
url |
https://orca.cardiff.ac.uk/id/eprint/15259/ https://doi.org/10.1130/0091-7613(2000)28<87:HDAAEL>2.0.CO;2 https://doi.org/10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
Coxall, Helen Kathrine https://orca.cardiff.ac.uk/view/cardiffauthors/A007483I.html, Pearson, Paul Nicholas https://orca.cardiff.ac.uk/view/cardiffauthors/A0179150.html orcid:0000-0003-4628-9818 orcid:0000-0003-4628-9818, Shackleton, Nicholas J. and Hall, Mike A. 2000. Hantkeninid depth adaptation: an evolving life strategy in a changing ocean. Geology 28 (1) , pp. 87-90. 10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 https://doi.org/10.1130/0091-7613%282000%2928%3C87%3AHDAAEL%3E2.0.CO%3B2 doi:10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 |
op_doi |
https://doi.org/10.1130/0091-7613(2000)28<87:HDAAEL>2.0.CO;2 https://doi.org/10.1130/0091-7613(2000)2887:HDAAEL2.0.CO;2 |
_version_ |
1766170021469356032 |