Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea)
Abstract The sea urchin family Pourtalesiidae is primarily an abyssal taxon, exhibiting extremely modified morphologies that have emerged as an adaptation for burrowing in soft sediment. Here, we present the first detailed molecular phylogeny of the family Pourtalesiidae. Both morphological and mole...
Published in: | Zoological Journal of the Linnean Society |
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Oxford University Press (OUP)
2024
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Online Access: | http://dx.doi.org/10.1093/zoolinnean/zlae034 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlae034/57208295/zlae034.pdf |
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croxfordunivpr:10.1093/zoolinnean/zlae034 2024-05-12T07:54:26+00:00 Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) Minin, Kirill V Mironov, Alexandr N Petrov, Nikolay B Vladychenskaya, Irina P Russian Federation 2024 http://dx.doi.org/10.1093/zoolinnean/zlae034 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlae034/57208295/zlae034.pdf en eng Oxford University Press (OUP) https://academic.oup.com/pages/standard-publication-reuse-rights Zoological Journal of the Linnean Society ISSN 0024-4082 1096-3642 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2024 croxfordunivpr https://doi.org/10.1093/zoolinnean/zlae034 2024-04-18T08:18:22Z Abstract The sea urchin family Pourtalesiidae is primarily an abyssal taxon, exhibiting extremely modified morphologies that have emerged as an adaptation for burrowing in soft sediment. Here, we present the first detailed molecular phylogeny of the family Pourtalesiidae. Both morphological and molecular evidence support the establishment of the family Ceratophysidae fam. nov. to accommodate seven former pourtalesiid genera. The name Pourtalesiidae is retained for the group of genera Cystocrepis and Pourtalesia. Based on morphological data, the fossil genus Galeaster is transferred to the monotypic family Galeasteridae fam. nov.. Families Pourtalesiidae and Ceratophysidae are each characterized by a unique pattern of plastron plating. Reconstructions indicate that elongated tests, as well as other adaptations for burrowing, evolved independently in these families. The evolutionary histories of pourtalesiids and ceratophysids are complex and include several instances of increase and decrease in this specialization. Molecular data support the Antarctic origin of Pourtalesiidae and Ceratophysidae, although for the latter the support is limited. The initial dispersal of pourtalesiids from the Antarctic occurred in the northward direction and included distribution of the least specialized forms throughout the eastern Pacific. Broad radiation of the more specialized forms apparently occurred later. The biogeographic history of the family Ceratophysidae is more complex and at present cannot be reconstructed reliably. Article in Journal/Newspaper Antarc* Antarctic Oxford University Press Antarctic Pacific The Antarctic Zoological Journal of the Linnean Society |
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Open Polar |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Minin, Kirill V Mironov, Alexandr N Petrov, Nikolay B Vladychenskaya, Irina P Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract The sea urchin family Pourtalesiidae is primarily an abyssal taxon, exhibiting extremely modified morphologies that have emerged as an adaptation for burrowing in soft sediment. Here, we present the first detailed molecular phylogeny of the family Pourtalesiidae. Both morphological and molecular evidence support the establishment of the family Ceratophysidae fam. nov. to accommodate seven former pourtalesiid genera. The name Pourtalesiidae is retained for the group of genera Cystocrepis and Pourtalesia. Based on morphological data, the fossil genus Galeaster is transferred to the monotypic family Galeasteridae fam. nov.. Families Pourtalesiidae and Ceratophysidae are each characterized by a unique pattern of plastron plating. Reconstructions indicate that elongated tests, as well as other adaptations for burrowing, evolved independently in these families. The evolutionary histories of pourtalesiids and ceratophysids are complex and include several instances of increase and decrease in this specialization. Molecular data support the Antarctic origin of Pourtalesiidae and Ceratophysidae, although for the latter the support is limited. The initial dispersal of pourtalesiids from the Antarctic occurred in the northward direction and included distribution of the least specialized forms throughout the eastern Pacific. Broad radiation of the more specialized forms apparently occurred later. The biogeographic history of the family Ceratophysidae is more complex and at present cannot be reconstructed reliably. |
author2 |
Russian Federation |
format |
Article in Journal/Newspaper |
author |
Minin, Kirill V Mironov, Alexandr N Petrov, Nikolay B Vladychenskaya, Irina P |
author_facet |
Minin, Kirill V Mironov, Alexandr N Petrov, Nikolay B Vladychenskaya, Irina P |
author_sort |
Minin, Kirill V |
title |
Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) |
title_short |
Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) |
title_full |
Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) |
title_fullStr |
Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) |
title_full_unstemmed |
Evolutionary and biogeographic patterns in the deep-sea echinoid families Pourtalesiidae Agassiz 1881 and Ceratophysidae fam. nov. (Echinoidea) |
title_sort |
evolutionary and biogeographic patterns in the deep-sea echinoid families pourtalesiidae agassiz 1881 and ceratophysidae fam. nov. (echinoidea) |
publisher |
Oxford University Press (OUP) |
publishDate |
2024 |
url |
http://dx.doi.org/10.1093/zoolinnean/zlae034 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlae034/57208295/zlae034.pdf |
geographic |
Antarctic Pacific The Antarctic |
geographic_facet |
Antarctic Pacific The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Zoological Journal of the Linnean Society ISSN 0024-4082 1096-3642 |
op_rights |
https://academic.oup.com/pages/standard-publication-reuse-rights |
op_doi |
https://doi.org/10.1093/zoolinnean/zlae034 |
container_title |
Zoological Journal of the Linnean Society |
_version_ |
1798849375980486656 |