MILIOLIDAE - Acta Palaeontologica Polonica
MILIOLIDAE - Acta Palaeontologica Polonica
MILIOLIDAE - Acta Palaeontologica Polonica
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134 EWA I.UCZKOWSKA<br />
the mega I generation, the proloculus being 70-80 ~ in diameter (Textfig.<br />
45). The shape of chambers in cross-section is semicircular initially,<br />
then expanded to the sides and flattened.<br />
lmm<br />
2b<br />
(])b G)b<br />
Fig. 45. Morphological variability and internal structure of Triloculina eggeri (Bogdanowich),<br />
Upper Tortonian, Gliwice Stare, mega I generation; 1,3- cryptoquinqueloculine<br />
forms; 2 - typical form with initial quinqueloculine part; 4 - juvenile quinqueloculine<br />
stage; a front view, b apertural view, c cross-section.<br />
Remarks. - This species differs from Triloculina austriaca d'Orbigny<br />
in its more inflated chambers slightly twisted near the top.<br />
Distribution. - Poland: Upper Tortonian (Gliwice Stare, Krywald, Ligota<br />
Zabrska). USSR: Tchokrak (Middle Miocene), Crimea-Caucasian region<br />
and Ukraine.<br />
+ Triloculina gibba d'Orbigny, 1826<br />
(PI. XXIII, Fig. 2a-c; Text-fig. 46/2)<br />
1826. Triloculina gibba d'Orbigny; A. d'Orbigny, p. 299, in Catalogue Ellis & Messina.<br />
1846. Triloculina gibba d'Orbigny; A. d'Orbigny, p. 274, PI. 16, Figs 22-24.<br />
1970. Triloculina gibba gibba; V. J. Didkovsky & Z. N. Satanovskaja, p. 56, PI. 33,<br />
Fig. 3; cum. syn.
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