- planation, plane, planification, planiform, planish, planula, planular,
planulate plang-, planct- strike, beat; lament,
mourn Latin plangere,
planctus plangent...
- 6
whorls are
separated by
impressed sutures. They are
rather convex,
planulate at the
sutures and subgradate. The
color pattern of the
first whorl is...
-
transiens Frentzen, 1937
Pleuroceras apyrenum Buckman, 1911
Pleuroceras has a
planulate s**** with a
quadrate whorl section,
bearing strong radial ribs ending...
- has a depressed-conic shape. It is pale yellowish. The six
whorls are
planulate above, and
obliquely tuberculate-plicate. The
periphery is expanded, compressed...
-
subgen of Erymnoceras. (U Callov) Rollierites: evolute, more or less
planulate; ribs co****,
branching from
tubercles at
umbilical edge. (M Callov)....
- planation, plane, planification, planiform, planish, planula, planular,
planulate plang-, planct- strike, beat; lament,
mourn Latin plangere,
planctus plangent...
-
spire is
strictly conical. The apex is eroded. The
about 7
whorls are
planulate above, the last
acutely angular at the periphery. The
whorls are smooth...
-
Megalytoceratinae is a
subfamily of
lytoceratids ammonites consisting of
planulate forms, i.e.
those with
moderately evolute compressed s**** with bluntly...
-
diameter of
about 45–54
millimetres (1.8–2.1 in).These
ammonites have a
planulate s**** with a
quadrate whorl section,
bearing strong radial ribs ending...
- rose color. it
contains 9 whorls, the
embryonic smooth, the
following planulate. The s**** is
sculptured with
spiral series of
regular beads the remaining...
