-
traces of ****top****s,
which would support the
hypothesis that the
microconchs were males. They
likely bore a
radula and beak, and
marginal siphuncle...
- ribs
become thicker on the body
chambers of
microconchs but
thinner of body
chambers of macroconchs.
Microconch and
macroconch variations,
presumed male...
-
times larger than
microconchs. As an example,
macroconchs of
Pseudolioceras are more than 150mm in diameter,
while adult microconchs are only 35-50mm....
- some
species can be smooth,
strongly ribbed ones can have tubercules.
Microconchs have
short lapplets that is in its
shape similar to the
shape of growth...
-
dimorphism is known, and Gabillytes,
synonym of
Zugodactylites were
microconchs. They have
evolved from
finely ribbed Peronoceras. List of
ammonite genera...
- From a
marine facies ("tongue") in
South Dakota.
Discoscaphites D.
rossi Microconch of an ammonite. From a
marine facies ("tongue") in
South Dakota. Scaphitidae...
- with
adults showing two
average heights - the
smaller male
adults (
microconchs) had an
average height of 180 mm (7.1 in);
while the
larger female adults...
-
ventrolateral shoulders were prominent. It is possible, that it was just a
microconch, or
juvenile of Radstockiceras.
Fossils belonging to this
genus were found...
- Jur****ic of Europe, Africa, and America.[citation needed] It is
probably a
microconch of
genus Oxynoticeras.
Ammonites belonging to this
genus had
small platyconic...
- S**** of
Harpoceras species show
strong dimorphism in
their size.
While microconchs reach 24–51 mm in diameter,
macroconchs s****
width is 115–430 mm. They...
