holotype illus_914.jpg
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holotype illus_914.jpgCurrent identification/main database link: Subbotina eocaena (Guembel 1868)
Original Description
[Translation from the Russian. - Test low conical, elongate; dorsally, there are six small chambers in the first whorl, and four nearly spherical chambers, increasing rapidly in size, in the second whorl. Ventrally, there are three large spherical chambers, of which the last one is perpendicular to the two preceding ones.
[Test low conical, elongate; periphery sinuous. Dorsally there are two whorls. The round initial chamber is surrounded by six small spherical chambers of the first whorl. In the second whorl there are four subspherical chambers which increase rapidly in size. On the ventral side the chambers are spherical, the last one being perpendicular to the preceding two chambers; the fourth chamber on the final whorl is not always easily discernible. Sutures between the chambers of the final whorl deep, narrow, straight. Aperture curved, slitlike, placed in the last chamber, at the side of the umbilicus. A lip overhangs the aperture. Wall calcareous, densely porous.
Diameter 0.38 mm.; thickness 0.21 mm.
Khalilov, D. M. (1956). 0 pelagicheskoy faune foraminifer Paleogenovykh otlozheniy Azerbaydzhana [Pelagic Foraminifera of the Paleogene Deposits of the Azerbaizhan SSR]. Trudy Instituta Geologii, Akademiya Nauk Azerbaidzhanskoi SSR. 17: 234-255. gsReferences:
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Globigerina subtriloculinoides compiled by the pforams@mikrotax project team viewed: 4-3-2021
Short stable page link: https://mikrotax.org/pforams/index.php?id=130690 Go to Archive.is to create a permanent copy of this page - citation notes |