Foraminifera source details
Menkes, M. A. (1975). Представители рода Catapsydrax в эоценовых отложениях юга Украины - Representatives of the genus Catapsydrax in the Eocene deposits of the South Ukraine. Trudyi Instituta Geologii i Geogiziki, Sibiriskoe Otlodelenie, Akademiya Nauk SSSR (Nauka) Moscow. 333: 281-282.
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Menkes, M. A. (1975). Представители рода Catapsydrax в эоценовых отложениях юга Украины - Representatives of the genus Catapsydrax in the Eocene deposits of the South Ukraine. Trudyi Instituta Geologii i Geogiziki, Sibiriskoe Otlodelenie, Akademiya Nauk SSSR (Nauka) Moscow. 333: 281-282
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Catapsydrax golicynensis Menkes, 1975 † accepted as Catapsydrax unicavus Bolli, Loeblich & Tappan, 1957 † (original description)