-
distinguished by the
presence of
conical calcareous deposits,
known as
endocones,
found in the more
apical portion of the siphuncle. They are
thought to...
-
concretions known as
endocones,
which have a
simple conical form in Cameroceras. A thin
endosiphuncular tube p****es
through the apex of each
endocone, in the lower...
-
especially in the
young but
which may be
tubular in the
adult stage.
Endocones are simple,
subcircular in
cross section, and
penetrated by a
narrow tube...
- true endocerids, the
simple endocones of
bisonocerids are
interlaced with a more
complex form of
endocone. “Complex”
endocones are imperforate,
without a...
-
process about which the
endocones are draped.
Perkinsoceras has what have been
interpreted as
tubules that form
where the
endocones impinge on the process...
-
characterized by a
lateral pair of
subequal conical structures,
resembling the
endocones of endocerids,
separated by a
straight partition that
extends more than...
- "earlier
shield horn") is a
medium to
large sized[ambiguous]
endocerid (
endocone-bearing
orthoconic nautiliod) from the
Early and
Middle Ordovician included...
- with
simple endocones which lack the more
complex structures ****ociated with the
Proterocameroceratidae and
their derivatives.
Endocones,
nested cone-shaped...
- to Teichert, 1964, are holochoanitic,
reaching to the
previous septum.
Endocones are
described as
having a
dorsal wedge, or process,
making the internal...
- a
family of
endogastric discosorids (Cephalopoda, Nautiloidea), with
endocones in the siphuncle,
ranging from the
Middle Silurian to
Middle Devonian...
