A closeup of biflagellated foraminiferal gametes leaving the aperture of the parent gamont. The gametes are about 2 um in diameter. Image courtesy of Susan T. Goldstein, University of Georgia. This image first appeared in J. Foram. Res. 23:213-220 and is used with permission.
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From the collection
star*sand: The micro*scope foraminifera site
|Description of Ammonia beccarii: Test trochoid, with convex dorsal side and
spirally arranged chambers; on the ventral side only the
last coil with an open umbilical slit and wart-like orna-
mentation is visible.
Widely distributed, one of the most abundant spe-
cies in biotopes with reduced mineralization. The test shape in A. beccarii is dependent on ecological