Taxonomic significance of short forms of middle Permian Pseudoalbaillella Holdsworth and Jones, 1980 (Follicucullidae,Radiolaria) |
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| Institution: | 1. Institute of Geology and Paleontology, Graduate School of Science, Tohoku University, Aramaki Aza Aoba 6-3, Sendai 980-8578, Japan;2. The Center for Academic Resources and Archives Tohoku University Museum, Tohoku University, Aramaki 6-3, Aoba-ku, Sendai 980-8578, Japan;3. Department of Geology, Faculty of Agriculture, Utsunomiya University, Utsunomiya, Tochigi 321-8505, Japan;1. Department of Geology, Babeş-Bolyai University, M. Kogălniceanu 1, 400084 Cluj-Napoca, Romania;2. MARUM Center for Marine Environmental Sciences, University of Bremen, Leobener Strasse, 28359 Bremen, Germany;3. University of Miskolc, Department of Geology and Mineral Resources, H-3515 Miskolc-Egyetemváros, Hungary;1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan, Hubei 430074, China;2. Department of Geological Sciences, California State University, Fullerton, CA 92834-6850, USA;3. Natural History Museum of Guangxi Zhuang Autonomous Region, Nanning, Guangxi 530012, China |
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| Abstract: | Middle Permian Pseudoalbaillella from the Xiaodong area in South China were studied using fossil morphology. Short forms of Pseudoalbaillella fusiformis (Holdsworth and Jones), Pseudoalbaillella internata Wang, and Pseudoalbaillella monacantha (Ishiga and Imoto), characterized by a short and skirt-like pseudoabdomen, were confirmed. We conclude that the short forms were derived from their respective species by breaking off during disruptive processes. If this is true, there may be structurally weakened parts in the pseudoabdomen. |
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| Keywords: | Radiolaria Albaillellaria Taxonomy Middle Permian Paleozoic South China Radiolaires Albaillellaria Taxonomie Permien moyen Paléozoïque Chine du Sud |
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