-
sacculata and the
fungus Ostracolaba implexa.
Micricitic mud
mounds are
subcircular domes of
micritic calcite that
lacks internal structure.
Modern examples...
-
young but
which may be
tubular in the
adult stage.
Endocones are simple,
subcircular in
cross section, and
penetrated by a
narrow tube
which may
contain diaphragms...
- 12 km (7.5 mi)
southeast of Utqiagvik, Alaska,
United States. Avak is a
subcircular structure about 12 km (7.5 mi) in
diameter and 1 km (0.62 mi) deep. In...
- effaced, has a
clear furrow parallel to its border, and a short, convex,
subcircular axis. It
lived during the
Ordovician (upper
Tremadoc to Ashgill). It...
- less
prominent laterally than in Shonisaurus,
while the
shaft shows a
subcircular rather than
oblong cross-section at that position.
While less well-preserved...
- Late
Devonian oncocerids included in the Poterioceratidae, a
family of
subcircular to
compressed exogastric cyrtocones without a
hyponomic sinus. Mecynoceras...
- floor.
Several smaller subcircular depressions are
located nearby Ruach Planitia to the
south and southwest;
these subcircular depressions may be of cryovolcanic...
-
peripheral angulation,
slightly flattened basally. The
aperture is oblique,
subcircular,
slightly angular superiorly, and
livid white internally. The peristome...
- the keyhole-shaped orbit. This
upper part was
proportionally small and
subcircular, and
separated from the
lower part of the
orbit by the forward-projecting...
- are
sometimes referred to as
intracratonic sag basins. They tend to be
subcircular in
shape and are
commonly filled with
shallow water marine or terrestrial...
