Shallow-marine testate amoebae with internal structures from the Lower Devonian of China

Testate amoebae, a polyphyletic protist group inhabiting a wide variety of extant ecosystems, have evolved as far back as early Neoproterozoic. However, their fossil record is discontinuous and biased toward empty shells. Here, we report an arcellinid testate amoeba species, Cangwuella ampulliformis...

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Autores principales: Wang, Kai, Xu, Hong-He, Liu, Bing-Cai, Bai, Jiao, Wang, Yao, Tang, Peng, Lu, Jian-Feng, Wang, Yi
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10173733/
https://www.ncbi.nlm.nih.gov/pubmed/37182111
http://dx.doi.org/10.1016/j.isci.2023.106678
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author Wang, Kai
Xu, Hong-He
Liu, Bing-Cai
Bai, Jiao
Wang, Yao
Tang, Peng
Lu, Jian-Feng
Wang, Yi
author_facet Wang, Kai
Xu, Hong-He
Liu, Bing-Cai
Bai, Jiao
Wang, Yao
Tang, Peng
Lu, Jian-Feng
Wang, Yi
author_sort Wang, Kai
collection PubMed
description Testate amoebae, a polyphyletic protist group inhabiting a wide variety of extant ecosystems, have evolved as far back as early Neoproterozoic. However, their fossil record is discontinuous and biased toward empty shells. Here, we report an arcellinid testate amoeba species, Cangwuella ampulliformis gen. nov., sp. nov., from a shallow-marine community in the Early Devonian of Guangxi, southwestern China. With the aid of scanning electron microscopy and X-ray micro-tomography, we find that the shell of our testate amoeba contains some acetabuliform structures. Although such configuration does not match exactly with the known internal structures in extant testate amoebae, our fossils highlight the potential of exploring the ecological relationships between fossil testate amoebae and their associated organisms, and increase our knowledge on the diversity of testate amoebae in Early Devonian environments.
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spelling pubmed-101737332023-05-12 Shallow-marine testate amoebae with internal structures from the Lower Devonian of China Wang, Kai Xu, Hong-He Liu, Bing-Cai Bai, Jiao Wang, Yao Tang, Peng Lu, Jian-Feng Wang, Yi iScience Article Testate amoebae, a polyphyletic protist group inhabiting a wide variety of extant ecosystems, have evolved as far back as early Neoproterozoic. However, their fossil record is discontinuous and biased toward empty shells. Here, we report an arcellinid testate amoeba species, Cangwuella ampulliformis gen. nov., sp. nov., from a shallow-marine community in the Early Devonian of Guangxi, southwestern China. With the aid of scanning electron microscopy and X-ray micro-tomography, we find that the shell of our testate amoeba contains some acetabuliform structures. Although such configuration does not match exactly with the known internal structures in extant testate amoebae, our fossils highlight the potential of exploring the ecological relationships between fossil testate amoebae and their associated organisms, and increase our knowledge on the diversity of testate amoebae in Early Devonian environments. Elsevier 2023-04-18 /pmc/articles/PMC10173733/ /pubmed/37182111 http://dx.doi.org/10.1016/j.isci.2023.106678 Text en © 2023 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Article
Wang, Kai
Xu, Hong-He
Liu, Bing-Cai
Bai, Jiao
Wang, Yao
Tang, Peng
Lu, Jian-Feng
Wang, Yi
Shallow-marine testate amoebae with internal structures from the Lower Devonian of China
title Shallow-marine testate amoebae with internal structures from the Lower Devonian of China
title_full Shallow-marine testate amoebae with internal structures from the Lower Devonian of China
title_fullStr Shallow-marine testate amoebae with internal structures from the Lower Devonian of China
title_full_unstemmed Shallow-marine testate amoebae with internal structures from the Lower Devonian of China
title_short Shallow-marine testate amoebae with internal structures from the Lower Devonian of China
title_sort shallow-marine testate amoebae with internal structures from the lower devonian of china
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10173733/
https://www.ncbi.nlm.nih.gov/pubmed/37182111
http://dx.doi.org/10.1016/j.isci.2023.106678
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