-
characterized by
calcareous tests consisting of an
undivided planispirally to
trochospirally coiled tubular second chamber wound around the
initial proloculus, and...
-
miliolid forams in
which the test may be free or attached,
planispiral or
trochospiral,
evolute or involute,
spreading or discoidal. The proloculus, or initial...
- suborder, Lytoceratina. The s**** of
Turrilites is
tightly wound in a high
trochospiral, with an
acute angle at the apex. Ribs are weak to
strong and may have...
- to recent,
benthic foraminifera in
which tests are
planispirally to
trochospirally coiled, with
chambers provided with an
internal partition and hyaline...
-
typically of a
proloculus followed by an
undivided planospirally or
trochospirally wound tubular chamber such that the test is
either planar or conical...
-
range from the Jur****ic to recent. Test are
commonly planospiral or
trochospiral but may be
uniserial to
multiserial and are of
secreted hyaline (gl****y)...
-
produced calcareous tests with a
proloculus followed by an
undivided trochospirally enrolled tubular second chamber, in
which the
spiral side has prominent...
-
supplementary sutural apertures on the
umbilical side.
Their test is free,
trochospirally enrolled, and umbilicate. The
equatorial periphery is lobate, while...
-
Sphaeroidinidae –
Discorbacea with
strongly overlapping chambers,
arranged trochospirally or in
different planes; and
single slit-like or
multiple apertures....
-
Early Cretaceous (Barremian) to the present. The test, or s****, may be
trochospiral to
planispiral throughout, or just in the
early part with the
later part...
