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Abyssotherma pacifica, n. gen., n. sp., a Recent Remaneicid (Foraminiferida, Remaneicacea) from the East Pacific Rise

Paul Brönnimann, Cindy Lee Van Dover and John E. Whittaker
Micropaleontology
Vol. 35, No. 2 (1989), pp. 142-149
DOI: 10.2307/1485465
Stable URL: http://www.jstor.org/stable/1485465
Page Count: 8
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Abyssotherma pacifica, n. gen., n. sp., a Recent Remaneicid (Foraminiferida, Remaneicacea) from the East Pacific Rise
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Abstract

A new Recent remaneicid, Abyssotherma pacifica, occurs in recruitment arrays placed in the vicinity of deep-sea (2600 m) hydrothermal springs in the East Pacific. It has quite a large (d. 500-1200 μm) watchglass-shaped test, characterized by elongate ridges on the sutures of the spiral side, asymmetric and mushroom-shaped chambers on the umbilical side and an interior subdivided by secondary septa. A close homeomorph of the shallow, brackish-water species Bruneica clypea Brönnimann, Keij and Zaninetti, it differs in possessing two apertures per chamber in contrast to the single interiomarginal aperture of Bruneica.

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