The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny
The pygmy right whale, Caperea marginata, is the least understood extant baleen whale (Cetacea, Mysticeti). Knowledge on its basic anatomy, ecology, and fossil record is limited, even though its singular position outside both balaenids (right whales) and balaenopteroids (rorquals1grey whales) gives...
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ftzenodo:oai:zenodo.org:1137761 2023-05-15T15:36:58+02:00 The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny Park, Travis Marx, Felix G. Fitzgerald, Erich M.G. Evans, Alistair R. 2017-03-23 https://zenodo.org/record/1137761 https://doi.org/10.1002/jmor.20674 unknown info:eu-repo/grantAgreement/EC/H2020/656010/ https://zenodo.org/record/1137761 https://doi.org/10.1002/jmor.20674 oai:zenodo.org:1137761 info:eu-repo/semantics/openAccess Journal of Morphology 278 801-809 info:eu-repo/semantics/article publication-article 2017 ftzenodo https://doi.org/10.1002/jmor.20674 2023-03-11T02:43:20Z The pygmy right whale, Caperea marginata, is the least understood extant baleen whale (Cetacea, Mysticeti). Knowledge on its basic anatomy, ecology, and fossil record is limited, even though its singular position outside both balaenids (right whales) and balaenopteroids (rorquals1grey whales) gives Caperea a pivotal role in mysticete evolution. Recent investigations of the cetacean cochlea have provided new insights into sensory capabilities and phylogeny. Here, we extend this advance to Caperea by describing, for the first time, the inner ear of this enigmatic species. The cochlea is large and appears to be sensitive to low-frequency sounds, but its hearing limit is relatively high. The presence of a well-developed tympanal recess links Caperea with cetotheriids and balaenopteroids, rather than balaenids, contrary to the traditional morphological view of a close Caperea-balaenid relationship. Nevertheless, a broader sample of the cetotheriid Herpetocetus demonstrates that the presence of a tympanal recess can be variable at the specific and possibly even the intraspecific level. This is the peer reviewed version of the following article: Park T, Marx FG, Fitzgerald EMG, Evans 1 AR (2017) The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny. Journal of Morphology, 278, 801-809, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/jmor.20674/full. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. Article in Journal/Newspaper baleen whale Zenodo Recess ENVELOPE(-61.516,-61.516,-64.500,-64.500) Fitzgerald ENVELOPE(-111.602,-111.602,59.850,59.850) Journal of Morphology 278 6 801 809 |
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The pygmy right whale, Caperea marginata, is the least understood extant baleen whale (Cetacea, Mysticeti). Knowledge on its basic anatomy, ecology, and fossil record is limited, even though its singular position outside both balaenids (right whales) and balaenopteroids (rorquals1grey whales) gives Caperea a pivotal role in mysticete evolution. Recent investigations of the cetacean cochlea have provided new insights into sensory capabilities and phylogeny. Here, we extend this advance to Caperea by describing, for the first time, the inner ear of this enigmatic species. The cochlea is large and appears to be sensitive to low-frequency sounds, but its hearing limit is relatively high. The presence of a well-developed tympanal recess links Caperea with cetotheriids and balaenopteroids, rather than balaenids, contrary to the traditional morphological view of a close Caperea-balaenid relationship. Nevertheless, a broader sample of the cetotheriid Herpetocetus demonstrates that the presence of a tympanal recess can be variable at the specific and possibly even the intraspecific level. This is the peer reviewed version of the following article: Park T, Marx FG, Fitzgerald EMG, Evans 1 AR (2017) The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny. Journal of Morphology, 278, 801-809, which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/jmor.20674/full. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. |
format |
Article in Journal/Newspaper |
author |
Park, Travis Marx, Felix G. Fitzgerald, Erich M.G. Evans, Alistair R. |
spellingShingle |
Park, Travis Marx, Felix G. Fitzgerald, Erich M.G. Evans, Alistair R. The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny |
author_facet |
Park, Travis Marx, Felix G. Fitzgerald, Erich M.G. Evans, Alistair R. |
author_sort |
Park, Travis |
title |
The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny |
title_short |
The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny |
title_full |
The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny |
title_fullStr |
The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny |
title_full_unstemmed |
The cochlea of the enigmatic pygmy right whale Caperea marginata informs mysticete phylogeny |
title_sort |
cochlea of the enigmatic pygmy right whale caperea marginata informs mysticete phylogeny |
publishDate |
2017 |
url |
https://zenodo.org/record/1137761 https://doi.org/10.1002/jmor.20674 |
long_lat |
ENVELOPE(-61.516,-61.516,-64.500,-64.500) ENVELOPE(-111.602,-111.602,59.850,59.850) |
geographic |
Recess Fitzgerald |
geographic_facet |
Recess Fitzgerald |
genre |
baleen whale |
genre_facet |
baleen whale |
op_source |
Journal of Morphology 278 801-809 |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/656010/ https://zenodo.org/record/1137761 https://doi.org/10.1002/jmor.20674 oai:zenodo.org:1137761 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/jmor.20674 |
container_title |
Journal of Morphology |
container_volume |
278 |
container_issue |
6 |
container_start_page |
801 |
op_container_end_page |
809 |
_version_ |
1766367400532377600 |