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Total: 54

genus valid

Genus Zonooidium Timofeev Ezheg. Vsesoyuzn. Paleontol. Obshch., 16: 282. 30 Nov 1957

genus valid

Genus Zonosphaeridium Timofeev ex Y.-S. Xing, G.-Z. Liu Acta Geol. Sin., 1973, (1): 20. Sep 1973

genus valid

Genus Zonosphaeridium Timofeev

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Genus Zonosphaeridium Timofeev Trudy Vsesoyuzn. Neft. Nauchno-Issl. Geol.-Razved. Inst., N. S., (129): 30. 16 Jul 1959