Evolution and Diversification of Delphinid Skull Shapes
The diversity of the dolphin family was established during a short window of time. We investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear phylogeny. In this model, the common ancestor was similar to Lagenorhynchus albirostris. Initial diversification occurred in thr...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/afed661a-0b67-4da8-8bc3-af51870c222b 2024-04-28T08:27:43+00:00 Evolution and Diversification of Delphinid Skull Shapes Galatius, Anders Racicot, Rachel McGowen, Michael Olsen, Morten Tange 2020-10 https://pure.au.dk/portal/en/publications/afed661a-0b67-4da8-8bc3-af51870c222b https://doi.org/10.1016/j.isci.2020.101543 http://www.scopus.com/inward/record.url?scp=85091244027&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/afed661a-0b67-4da8-8bc3-af51870c222b info:eu-repo/semantics/openAccess Galatius , A , Racicot , R , McGowen , M & Olsen , M T 2020 , ' Evolution and Diversification of Delphinid Skull Shapes ' , iScience , vol. 23 , no. 10 , 101543 . https://doi.org/10.1016/j.isci.2020.101543 Biological Sciences Evolutionary Biology Evolutionary Processes Phylogenetics article 2020 ftuniaarhuspubl https://doi.org/10.1016/j.isci.2020.101543 2024-04-04T16:56:01Z The diversity of the dolphin family was established during a short window of time. We investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear phylogeny. In this model, the common ancestor was similar to Lagenorhynchus albirostris. Initial diversification occurred in three directions: toward specialized raptorial feeders of small prey with longer, narrower beaks, e.g., Delphinus; toward wider skulls with downward-oriented rostra and reduced temporal fossae, exemplified by suction feeders, e.g., Globicephala; and toward shorter and wider skulls/rostra and enlarged temporal fossae, e.g., Orcinus. Skull shape diversity was established early, the greatest later developments being adaptation of Steno to raptorial feeding on large prey and the convergence of Pseudorca toward Orcinus, related to handling large prey. Delphinid skull shapes are related to feeding mode and prey size, whereas adaptation to habitat is not marked. Over a short period, delphinid skulls have evolved a diversity eclipsing other extant odontocete clades. Article in Journal/Newspaper Lagenorhynchus albirostris Aarhus University: Research iScience 23 10 101543 |
institution |
Open Polar |
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Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
topic |
Biological Sciences Evolutionary Biology Evolutionary Processes Phylogenetics |
spellingShingle |
Biological Sciences Evolutionary Biology Evolutionary Processes Phylogenetics Galatius, Anders Racicot, Rachel McGowen, Michael Olsen, Morten Tange Evolution and Diversification of Delphinid Skull Shapes |
topic_facet |
Biological Sciences Evolutionary Biology Evolutionary Processes Phylogenetics |
description |
The diversity of the dolphin family was established during a short window of time. We investigated delphinid skull shape evolution, mapping shapes on an up-to-date nuclear phylogeny. In this model, the common ancestor was similar to Lagenorhynchus albirostris. Initial diversification occurred in three directions: toward specialized raptorial feeders of small prey with longer, narrower beaks, e.g., Delphinus; toward wider skulls with downward-oriented rostra and reduced temporal fossae, exemplified by suction feeders, e.g., Globicephala; and toward shorter and wider skulls/rostra and enlarged temporal fossae, e.g., Orcinus. Skull shape diversity was established early, the greatest later developments being adaptation of Steno to raptorial feeding on large prey and the convergence of Pseudorca toward Orcinus, related to handling large prey. Delphinid skull shapes are related to feeding mode and prey size, whereas adaptation to habitat is not marked. Over a short period, delphinid skulls have evolved a diversity eclipsing other extant odontocete clades. |
format |
Article in Journal/Newspaper |
author |
Galatius, Anders Racicot, Rachel McGowen, Michael Olsen, Morten Tange |
author_facet |
Galatius, Anders Racicot, Rachel McGowen, Michael Olsen, Morten Tange |
author_sort |
Galatius, Anders |
title |
Evolution and Diversification of Delphinid Skull Shapes |
title_short |
Evolution and Diversification of Delphinid Skull Shapes |
title_full |
Evolution and Diversification of Delphinid Skull Shapes |
title_fullStr |
Evolution and Diversification of Delphinid Skull Shapes |
title_full_unstemmed |
Evolution and Diversification of Delphinid Skull Shapes |
title_sort |
evolution and diversification of delphinid skull shapes |
publishDate |
2020 |
url |
https://pure.au.dk/portal/en/publications/afed661a-0b67-4da8-8bc3-af51870c222b https://doi.org/10.1016/j.isci.2020.101543 http://www.scopus.com/inward/record.url?scp=85091244027&partnerID=8YFLogxK |
genre |
Lagenorhynchus albirostris |
genre_facet |
Lagenorhynchus albirostris |
op_source |
Galatius , A , Racicot , R , McGowen , M & Olsen , M T 2020 , ' Evolution and Diversification of Delphinid Skull Shapes ' , iScience , vol. 23 , no. 10 , 101543 . https://doi.org/10.1016/j.isci.2020.101543 |
op_relation |
https://pure.au.dk/portal/en/publications/afed661a-0b67-4da8-8bc3-af51870c222b |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.isci.2020.101543 |
container_title |
iScience |
container_volume |
23 |
container_issue |
10 |
container_start_page |
101543 |
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1797586526596497408 |