Head morphology in perinatal dolphins: A window into phylogeny and ontogeny
In this paper on the ontogenesis and evolutionary biology of odontocete cetaceans (toothed whales), we investigate the head morphology of three perinatal pantropical spotted dolphins (Stenella attenuata) with the following methods: computer-assisted tomography, magnetic resonance imaging, convention...
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ftubpotsdam:oai:kobv.de-opus4-uni-potsdam:46855 2023-05-15T17:13:06+02:00 Head morphology in perinatal dolphins: A window into phylogeny and ontogeny Rauschmann, Michael A. Huggenberger, Stefan Kossatz, Lars Swen Oelschläger, Helmut H. A. 2006-10-18 https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/46855 https://doi.org/10.1002/jmor.10477 eng eng https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/46855 https://doi.org/10.1002/jmor.10477 info:eu-repo/semantics/closedAccess ddc:570 Institut für Biochemie und Biologie article doc-type:article 2006 ftubpotsdam https://doi.org/10.1002/jmor.10477 2022-07-28T20:49:16Z In this paper on the ontogenesis and evolutionary biology of odontocete cetaceans (toothed whales), we investigate the head morphology of three perinatal pantropical spotted dolphins (Stenella attenuata) with the following methods: computer-assisted tomography, magnetic resonance imaging, conventional X-ray imaging, cryo-sectioning as well as gross dissection. Comparison of these anatomical methods reveals that for a complete structural analysis, a combination of modern imaging techniques and conventional morphological methods is needed. In addition to the perinatal dolphins, we include series of microslides of fetal odontocetes (S. attenuata, common dolphin Delphinus delphis, narwhal Monodon monoceros). In contrast to other mammals, newborn cetaceans represent an extremely precocial state of development correlated to the fact that they have to swim and surface immediately after birth. Accordingly, the morphology of the perinatal dolphin head is very similar to that of the adult. Comparison with early fetal stages of dolphins shows that the ontogenetic change from the general mammalian bauplan to cetacean organization was characterized by profound morphological transformations of the relevant organ systems and roughly seems to parallel the phylogenetic transition. from terrestrial ancestors to modern odontocetes. Article in Journal/Newspaper Monodon monoceros narwhal* toothed whales University of Potsdam: publish.UP Journal of Morphology 267 11 1295 1315 |
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University of Potsdam: publish.UP |
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ftubpotsdam |
language |
English |
topic |
ddc:570 Institut für Biochemie und Biologie |
spellingShingle |
ddc:570 Institut für Biochemie und Biologie Rauschmann, Michael A. Huggenberger, Stefan Kossatz, Lars Swen Oelschläger, Helmut H. A. Head morphology in perinatal dolphins: A window into phylogeny and ontogeny |
topic_facet |
ddc:570 Institut für Biochemie und Biologie |
description |
In this paper on the ontogenesis and evolutionary biology of odontocete cetaceans (toothed whales), we investigate the head morphology of three perinatal pantropical spotted dolphins (Stenella attenuata) with the following methods: computer-assisted tomography, magnetic resonance imaging, conventional X-ray imaging, cryo-sectioning as well as gross dissection. Comparison of these anatomical methods reveals that for a complete structural analysis, a combination of modern imaging techniques and conventional morphological methods is needed. In addition to the perinatal dolphins, we include series of microslides of fetal odontocetes (S. attenuata, common dolphin Delphinus delphis, narwhal Monodon monoceros). In contrast to other mammals, newborn cetaceans represent an extremely precocial state of development correlated to the fact that they have to swim and surface immediately after birth. Accordingly, the morphology of the perinatal dolphin head is very similar to that of the adult. Comparison with early fetal stages of dolphins shows that the ontogenetic change from the general mammalian bauplan to cetacean organization was characterized by profound morphological transformations of the relevant organ systems and roughly seems to parallel the phylogenetic transition. from terrestrial ancestors to modern odontocetes. |
format |
Article in Journal/Newspaper |
author |
Rauschmann, Michael A. Huggenberger, Stefan Kossatz, Lars Swen Oelschläger, Helmut H. A. |
author_facet |
Rauschmann, Michael A. Huggenberger, Stefan Kossatz, Lars Swen Oelschläger, Helmut H. A. |
author_sort |
Rauschmann, Michael A. |
title |
Head morphology in perinatal dolphins: A window into phylogeny and ontogeny |
title_short |
Head morphology in perinatal dolphins: A window into phylogeny and ontogeny |
title_full |
Head morphology in perinatal dolphins: A window into phylogeny and ontogeny |
title_fullStr |
Head morphology in perinatal dolphins: A window into phylogeny and ontogeny |
title_full_unstemmed |
Head morphology in perinatal dolphins: A window into phylogeny and ontogeny |
title_sort |
head morphology in perinatal dolphins: a window into phylogeny and ontogeny |
publishDate |
2006 |
url |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/46855 https://doi.org/10.1002/jmor.10477 |
genre |
Monodon monoceros narwhal* toothed whales |
genre_facet |
Monodon monoceros narwhal* toothed whales |
op_relation |
https://publishup.uni-potsdam.de/opus4-ubp/frontdoor/index/index/docId/46855 https://doi.org/10.1002/jmor.10477 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1002/jmor.10477 |
container_title |
Journal of Morphology |
container_volume |
267 |
container_issue |
11 |
container_start_page |
1295 |
op_container_end_page |
1315 |
_version_ |
1766070007513481216 |