-
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)...
- part of the Nonionacea, s****, or tests, of
which are
planispiral or
trochospiral,
calcareous and
finely perforate.
Includes the Nonioninae, Pulleniinae...
- Atlantic,
Pacific and
Indian Oceans,
related to Rosalina. The test is
trochospiral and planoconvex, with a
broadly rounded periphery and
about six to nine...
-
characterized by an
attached test with
early chambers in an
irregular trochospiral,
later chambers numerous in a m****ive or
branching structure growing...
- 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...
-
Globigerinids are
characterized by
distinctly perforate planispiral or
trochospiral tests composed of
lamellar radial hyaline (gl****y) calcite, with typically...
- Rosalina,
included in
discorbacean family Rosalinidae. The test is a
small trochospiral coil of few
whorls with a few
subglobular chambers per whorl. The test...
-
composed of
chambers that are not
elongated radially but are
rounded and
trochospiral. As the
organism grows,
these chambers enlarge rapidly,
typically reaching...
-
Tests of the
Ventrolaminidae are lenticular, planispiral, or a low
trochospiral with
multiple chambers in a
rapidly enlarging whorl. The wall is calcareous...
-
superfamily Chilostomellacea. The test is
planoconvex to lenticular,
trochospiral, with
three to four
gradually enlarging whorls,
seven to
eight chambers...
