Suction feeding preceded filtering in baleen whale evolution
The origin of baleen, the key adaptation of modern whales (Mysticeti), marks a profound yet poorly understood transition in vertebrate evolution, triggering the rise of the largest animals on Earth. Baleen is thought to have appeared in archaic tooth-bearing mysticetes during a transitional phase th...
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ftzenodo:oai:zenodo.org:581695 2023-05-15T15:36:55+02:00 Suction feeding preceded filtering in baleen whale evolution Marx, Felix G. Hocking, David P. Park, Travis Ziegler, Tim Evans, Alistair R. Fitzgerald, Erich M.G. 2017-05-21 https://zenodo.org/record/581695 https://doi.org/10.5281/zenodo.581695 unknown info:eu-repo/grantAgreement/EC/H2020/656010/ doi:10.24199/j.mmv.2016.75.04 https://zenodo.org/record/581695 https://doi.org/10.5281/zenodo.581695 oai:zenodo.org:581695 info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode Memoirs of Museum Victoria 75 71-82 info:eu-repo/semantics/article publication-article 2017 ftzenodo https://doi.org/10.5281/zenodo.58169510.24199/j.mmv.2016.75.04 2023-03-11T01:36:31Z The origin of baleen, the key adaptation of modern whales (Mysticeti), marks a profound yet poorly understood transition in vertebrate evolution, triggering the rise of the largest animals on Earth. Baleen is thought to have appeared in archaic tooth-bearing mysticetes during a transitional phase that combined raptorial feeding with incipient bulk filtering. Here we show that tooth wear in a new Late Oligocene mysticete belonging to the putatively transitional family Aetiocetidae is inconsistent with the presence of baleen, and instead indicative of suction feeding. Our findings suggest that baleen arose much closer to the origin of toothless mysticete whales than previously thought. In addition, they suggest an entirely new evolutionary scenario in which the transition from raptorial to baleen-assisted filter feeding was mediated by suction, thereby avoiding the problem of functional interference between teeth and the baleen rack. Article in Journal/Newspaper baleen whale Zenodo |
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ftzenodo |
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description |
The origin of baleen, the key adaptation of modern whales (Mysticeti), marks a profound yet poorly understood transition in vertebrate evolution, triggering the rise of the largest animals on Earth. Baleen is thought to have appeared in archaic tooth-bearing mysticetes during a transitional phase that combined raptorial feeding with incipient bulk filtering. Here we show that tooth wear in a new Late Oligocene mysticete belonging to the putatively transitional family Aetiocetidae is inconsistent with the presence of baleen, and instead indicative of suction feeding. Our findings suggest that baleen arose much closer to the origin of toothless mysticete whales than previously thought. In addition, they suggest an entirely new evolutionary scenario in which the transition from raptorial to baleen-assisted filter feeding was mediated by suction, thereby avoiding the problem of functional interference between teeth and the baleen rack. |
format |
Article in Journal/Newspaper |
author |
Marx, Felix G. Hocking, David P. Park, Travis Ziegler, Tim Evans, Alistair R. Fitzgerald, Erich M.G. |
spellingShingle |
Marx, Felix G. Hocking, David P. Park, Travis Ziegler, Tim Evans, Alistair R. Fitzgerald, Erich M.G. Suction feeding preceded filtering in baleen whale evolution |
author_facet |
Marx, Felix G. Hocking, David P. Park, Travis Ziegler, Tim Evans, Alistair R. Fitzgerald, Erich M.G. |
author_sort |
Marx, Felix G. |
title |
Suction feeding preceded filtering in baleen whale evolution |
title_short |
Suction feeding preceded filtering in baleen whale evolution |
title_full |
Suction feeding preceded filtering in baleen whale evolution |
title_fullStr |
Suction feeding preceded filtering in baleen whale evolution |
title_full_unstemmed |
Suction feeding preceded filtering in baleen whale evolution |
title_sort |
suction feeding preceded filtering in baleen whale evolution |
publishDate |
2017 |
url |
https://zenodo.org/record/581695 https://doi.org/10.5281/zenodo.581695 |
genre |
baleen whale |
genre_facet |
baleen whale |
op_source |
Memoirs of Museum Victoria 75 71-82 |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/656010/ doi:10.24199/j.mmv.2016.75.04 https://zenodo.org/record/581695 https://doi.org/10.5281/zenodo.581695 oai:zenodo.org:581695 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/legalcode |
op_doi |
https://doi.org/10.5281/zenodo.58169510.24199/j.mmv.2016.75.04 |
_version_ |
1766367348180123648 |