O niektórych euryfacjalnych gatunkach otwornic występujących w neogenie Polski

Abstract

ON SAME EURYFACIAL FORAMINIFER SPECIES OCCURRING IN NEOGENE OF POLANDSummaryThe present paper deals with the data taken from foreign literature and from author's observations as to certain eurytacial. Foraminifer species occurring in Neogene of Poland. The following are species taken for examinations: Elphidium crispum (L), E. macellum (Fich t. et Moll), E. fichtelianum d'Orb., E. aculeatum (d'Orb.), Cibicides lobatulus (WaIk et. Jac.) and Rotalia beccari (L). A dependence of morphological changes of test upon character of environment allows to make observation as to the ecological properties in the Neogene deposits considered.