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Guttulina
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| Guttulina | |
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| Genus: | Guttulina d'Orbigny, in De La Sagra, 1939
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Guttulina is a genus of nodosariacean forams belonging to the Polymorphinidae and subfamily Polymorphinidae. The test is ovoid to elongate, inflated chambers added in a quinqueloculine spiral series, 144 deg. apart, each successive chamber extending further from the base but strongly overlapping. Sutures depressed, aperture radiate. As with all Nodosarioidea the wall is of finely perforate, radial laminated calcite.
References
[edit]- Alfred R. Loeblich Jr & Helen Tappan, 1964. Sarcodina Chiefly "Thecamoebians" and Foraminiferida; Treatise on Invertebrate Paleontology, Part C Protista 2. Geological Society of America and University of Kansas Press.
Further reading
[edit]Gaździcki, Andrzej; Majewski, Wojciech (3 April 2012). "Foraminifera from the Eocene La Meseta Formation of Isla Marambio (Seymour Island), Antarctic Peninsula". Antarctic Science. 24 (4): 408–416. Bibcode:2012AntSc..24..408G. doi:10.1017/S095410201200020X.