The following is a list of organizations that have regularly participated with corporate membership.
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China Palaeontological Society of China
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New Zealand Royal Society of New Zealand
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Czech Republic Geological Institute AS CR
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Poland Polish Section of Palaeontologists
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France Association Paléontologique Française
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Spain Sociedad Española de Paleontología
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France The staff of Carnets de Géologie-Notebooks on Geology
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Switzerland Société Paléontologique Suisse
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India Palaeontological Society of India
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United Kingdom Micropalaeontological Society
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Iran Iranian Paleontological Society
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United Kingdom The Palaeontological Association
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IRGO International Research Group on Ostracoda
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USA Paleobotanical Section of the Botanical Society of America
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Italy Societa Palaeontologica Italiana
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USA The Paleontological Society
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Japan Palaeontological Society of Japan
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USA The Paleontological Society of Washington
