General aspects of the evolutionary history of whales and dolphins
Abstract The Cetacea are the most diverse and highly aquatically adapted group of mammals. Their fossil record extends back at least to the Middle Eocene ( ca 50 Ma), and they will possibly be found earlier, judging by the relatively highly evolved nature of the earliest known whales. The most likel...
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crwiley:10.1111/j.1440-1738.1994.tb00121.x 2024-06-02T07:58:22+00:00 General aspects of the evolutionary history of whales and dolphins Fordyce, R. Ewan Barnes, Lawrence G. Miyazah, Nobuyuki 1994 http://dx.doi.org/10.1111/j.1440-1738.1994.tb00121.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1440-1738.1994.tb00121.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1440-1738.1994.tb00121.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Island Arc volume 3, issue 4, page 373-391 ISSN 1038-4871 1440-1738 journal-article 1994 crwiley https://doi.org/10.1111/j.1440-1738.1994.tb00121.x 2024-05-03T11:01:04Z Abstract The Cetacea are the most diverse and highly aquatically adapted group of mammals. Their fossil record extends back at least to the Middle Eocene ( ca 50 Ma), and they will possibly be found earlier, judging by the relatively highly evolved nature of the earliest known whales. The most likely terrestrial ancestors of whales are the mesonychids, primitive hoofed mammals with omnivorous diets. Recently discovered archaeocetes with large, mesonychidâlike heads and dentitions and functional hind limbs reconfirm earlier ideas about the mesonychid origin of cetaceans and the amphibious nature of the earliest transitional forms. Fossil cetaceans are relatively abundant and diverse thoughout the world, and are now known from every continent, including Antarctica. Odontocetes evolved echolocation to locate food. Mysticetes developed bulk feeding adaptations. Both undoubtedly evolved from archaeocetes, and the monophyly of Cetacea is the most parsimonious present hypothesis. Chromosomal and molecular evidence has taken an increasingly important role in determining cetacean relationships, but fossils and classical comparative morphological studies remain a necessary and pivotal source of information about cetacean phylogeny. Article in Journal/Newspaper Antarc* Antarctica Wiley Online Library Island Arc 3 4 373 391 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The Cetacea are the most diverse and highly aquatically adapted group of mammals. Their fossil record extends back at least to the Middle Eocene ( ca 50 Ma), and they will possibly be found earlier, judging by the relatively highly evolved nature of the earliest known whales. The most likely terrestrial ancestors of whales are the mesonychids, primitive hoofed mammals with omnivorous diets. Recently discovered archaeocetes with large, mesonychidâlike heads and dentitions and functional hind limbs reconfirm earlier ideas about the mesonychid origin of cetaceans and the amphibious nature of the earliest transitional forms. Fossil cetaceans are relatively abundant and diverse thoughout the world, and are now known from every continent, including Antarctica. Odontocetes evolved echolocation to locate food. Mysticetes developed bulk feeding adaptations. Both undoubtedly evolved from archaeocetes, and the monophyly of Cetacea is the most parsimonious present hypothesis. Chromosomal and molecular evidence has taken an increasingly important role in determining cetacean relationships, but fossils and classical comparative morphological studies remain a necessary and pivotal source of information about cetacean phylogeny. |
format |
Article in Journal/Newspaper |
author |
Fordyce, R. Ewan Barnes, Lawrence G. Miyazah, Nobuyuki |
spellingShingle |
Fordyce, R. Ewan Barnes, Lawrence G. Miyazah, Nobuyuki General aspects of the evolutionary history of whales and dolphins |
author_facet |
Fordyce, R. Ewan Barnes, Lawrence G. Miyazah, Nobuyuki |
author_sort |
Fordyce, R. Ewan |
title |
General aspects of the evolutionary history of whales and dolphins |
title_short |
General aspects of the evolutionary history of whales and dolphins |
title_full |
General aspects of the evolutionary history of whales and dolphins |
title_fullStr |
General aspects of the evolutionary history of whales and dolphins |
title_full_unstemmed |
General aspects of the evolutionary history of whales and dolphins |
title_sort |
general aspects of the evolutionary history of whales and dolphins |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1440-1738.1994.tb00121.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1440-1738.1994.tb00121.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1440-1738.1994.tb00121.x |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Island Arc volume 3, issue 4, page 373-391 ISSN 1038-4871 1440-1738 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1440-1738.1994.tb00121.x |
container_title |
Island Arc |
container_volume |
3 |
container_issue |
4 |
container_start_page |
373 |
op_container_end_page |
391 |
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1800741688345362432 |