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Miocene cladocera from Poland

The Bełchatów Lignite Mine of Poland is a treasure-cove for mid-to late Miocene plant and animal fossils, deposited in a slow-flowing river valley with swamps and oxbow lakes. Here, we report the finding of abundant fossil anomopod cladocerans. Some are three-dimensionally preserved, including the t...

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Autores principales: Dumont, Henri J., Pociecha, Agnieszka, Zawisza, Edyta, Szeroczyńska, Krystyna, Worobiec, Elżbieta, Worobiec, Grzegorz
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374747/
https://www.ncbi.nlm.nih.gov/pubmed/32694531
http://dx.doi.org/10.1038/s41598-020-69024-9
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author Dumont, Henri J.
Pociecha, Agnieszka
Zawisza, Edyta
Szeroczyńska, Krystyna
Worobiec, Elżbieta
Worobiec, Grzegorz
author_facet Dumont, Henri J.
Pociecha, Agnieszka
Zawisza, Edyta
Szeroczyńska, Krystyna
Worobiec, Elżbieta
Worobiec, Grzegorz
author_sort Dumont, Henri J.
collection PubMed
description The Bełchatów Lignite Mine of Poland is a treasure-cove for mid-to late Miocene plant and animal fossils, deposited in a slow-flowing river valley with swamps and oxbow lakes. Here, we report the finding of abundant fossil anomopod cladocerans. Some are three-dimensionally preserved, including the taxonomically important trunk limbs. They pertain to the families Chydoridae and Bosminidae, with species similar to but distinct from modern ones. All are members of the zooplankton, though some are littoral while others are pelagic in nature. Morphological stasis in these families is not outspoken as in the Daphniidae and the stasis hypothesis, based on ephippia only, is challenged. The absence of Daphnia is conspicuous and ascribed to a combination of fish predation and local water chemistry. Its place in the oxbow lakes is taken by at least two Bosmina species, one of which is undescribed. We consider this a case of paleo-competitive release. For Bosminidae, these are the first certified fossils predating the Pleistocene.
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spelling pubmed-73747472020-07-22 Miocene cladocera from Poland Dumont, Henri J. Pociecha, Agnieszka Zawisza, Edyta Szeroczyńska, Krystyna Worobiec, Elżbieta Worobiec, Grzegorz Sci Rep Article The Bełchatów Lignite Mine of Poland is a treasure-cove for mid-to late Miocene plant and animal fossils, deposited in a slow-flowing river valley with swamps and oxbow lakes. Here, we report the finding of abundant fossil anomopod cladocerans. Some are three-dimensionally preserved, including the taxonomically important trunk limbs. They pertain to the families Chydoridae and Bosminidae, with species similar to but distinct from modern ones. All are members of the zooplankton, though some are littoral while others are pelagic in nature. Morphological stasis in these families is not outspoken as in the Daphniidae and the stasis hypothesis, based on ephippia only, is challenged. The absence of Daphnia is conspicuous and ascribed to a combination of fish predation and local water chemistry. Its place in the oxbow lakes is taken by at least two Bosmina species, one of which is undescribed. We consider this a case of paleo-competitive release. For Bosminidae, these are the first certified fossils predating the Pleistocene. Nature Publishing Group UK 2020-07-21 /pmc/articles/PMC7374747/ /pubmed/32694531 http://dx.doi.org/10.1038/s41598-020-69024-9 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Dumont, Henri J.
Pociecha, Agnieszka
Zawisza, Edyta
Szeroczyńska, Krystyna
Worobiec, Elżbieta
Worobiec, Grzegorz
Miocene cladocera from Poland
title Miocene cladocera from Poland
title_full Miocene cladocera from Poland
title_fullStr Miocene cladocera from Poland
title_full_unstemmed Miocene cladocera from Poland
title_short Miocene cladocera from Poland
title_sort miocene cladocera from poland
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7374747/
https://www.ncbi.nlm.nih.gov/pubmed/32694531
http://dx.doi.org/10.1038/s41598-020-69024-9
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