-
larger s**** (the macroconch)
being female, and the
smaller s**** (the
microconch)
being male. This is
thought to be
because the
female required a larger...
- ribs
become thicker on the body
chambers of
microconchs but
thinner of body
chambers of macroconchs.
Microconch and
macroconch variations,
presumed male...
-
Temporal range:
Bathonian PreꞒ Ꞓ O S D C P T J K Pg N ↓
Leptosphinctes sp.,
microconch, Dorset, England,
Middle Jur****ic.
Scientific classification Kingdom:...
- form
thought to be
female and a small,
microconch, form
thought to be male. In most
aspects the
microconch is
simply a
smaller version of the macroconch...
- in size from 95 to 175
millimetres (3.7 to 6.9 in) in
diameter and the
microconch (male)
which ranges from 24 to 41
millimetres (0.94 to 1.61 in). When...
- From a
marine facies ("tongue") in
South Dakota.
Discoscaphites D.
rossi Microconch of an ammonite. From a
marine facies ("tongue") in
South Dakota. Scaphitidae...
-
dimorphism is known, and Gabillytes,
synonym of
Zugodactylites were
microconchs. They have
evolved from
finely ribbed Peronoceras. List of
ammonite genera...
- 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...
-
macroconch has a
broad ventral collar preceded by a constriction. That of the
microconch is
flanked by
lappets and has no constriction. The
suture is ammonitic...
-
Africa and
South America.
Species belonging to this
genus were
probably microconchs of Catacoeloceras. As
macroconch of M.
mucronatus is
considered to be...
