-
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...
- 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...
- 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...
- From a
marine facies ("tongue") in
South Dakota.
Discoscaphites D.
rossi Microconch of an ammonite. From a
marine facies ("tongue") in
South Dakota. Scaphitidae...
-
ventrolateral shoulders were prominent. It is possible, that it was just a
microconch, or
juvenile of Radstockiceras.
Fossils belonging to this
genus were found...
-
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...
- ribs
become thicker on the body
chambers of
microconchs but
thinner of body
chambers of macroconchs.
Microconch and
macroconch variations,
presumed male...
-
valid genus. S**** of
Cleviceras show
dimorphism in
their size.
While microconchs reach 16–62 mm in diameter,
macroconchs s****
width is 85–200 mm. They...
-
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:...
-
exhibits size dimorphism.
Genus Mucrodactylites is
considered to be a
microconch. M. K.
Howarth 2013.
Treatise on
Invertebrate Paleontology, Part L, Revised...
