CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina eximia Todd 1957
This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
Original Description "Test large, compact, low spired; umbilicus narrow and deep. Chambers few, large, inflated toward their dorsal and peripheral parts and becoming constricted toward the umbili cus, strongly embracing dorsally and overhanging the umbilicus ventrally, last three constituting most of the test. Sutures distinctly indented. Wall calcareous, perforate, coarsely cancellated. Aperture small, narrow, at the junction of the ventral sutures. Size: Greatest dimension of test 0.75-0.85 mm.; thickness 0.55-0.70 mm. Extra details from original publication This species seems related to Globigerina venezuelana Hedberg from the Oligocene of Venezuela, but in Globigerina eximia the chambers are more inflated and more rapidly increasi ng in size as added, resulting in three instead of four chambers co nstituting the last whorl and in the last chamber making up a larger proportion of the test.
References:
Todd, R. (1957). Smaller foraminifera, in Geology of Saipan, Mariana Islands, Pt. 3, Paleontology. U.S. Geological Survey, Professional Paper. 280-H: 265-320. gsO
Globigerina eximia compiled by the pforams@mikrotax project teamviewed: 19-3-2025
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Todd 1957 pl78 f8.JPG
Todd 1957 pl78 f8.JPG
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