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†Trigonocyrillium Porter, Meisterfeld & Knoll 2003
urn:lsid:organismnames.com:name:1635706
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†Trigonocyrillium Porter, Meisterfeld & Knoll 2003
Porter, Meisterfeld & Knoll 2003. Vase-shaped microfossils from the Neoproterozoic Chuar Group, Grand Canyon: A classification guided by modern testate amoebae. Journal of Paleontology, 77(3), May 2003: 409-429