- 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...
-
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)...
-
Globigerinids are
characterized by
distinctly perforate planispiral or
trochospiral tests composed of
lamellar radial hyaline (gl****y) calcite, with typically...
-
composed of
chambers that are not
elongated radially but are
rounded and
trochospiral. As the
organism grows,
these chambers enlarge rapidly,
typically reaching...
-
Paleocene to
recent benthic textulariid Foraminifera characterized by
trochospiral tests in the
early stage which may
become uniserial in the later. Walls...
- the Cretaceous,
described by
Loeblich and Tappan, 1961, as: Test free,
trochospiral, biconvex, umbilicate,
periphery rounded with no
indication of keel or...
- Tri****ic to the present,
characterized by
chambers arranged in a low
trochospiral; an
umbilical or
interiomarginal aperture, with or
without supplementary...
- to
Holocene agglutinated benthic textulariid Foraminifera.
Tests are
trochospiral, triserial, or
biserial in
early stages;
later may be
biserial or uniserial...
-
Tests of the
Ventrolaminidae are lenticular, planispiral, or a low
trochospiral with
multiple chambers in a
rapidly enlarging whorl. The wall is calcareous...
-
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...
