- 0.CO;2. ISSN 0022-3360. Mutvei,
Harry (2016-04-02). "
Siphuncular structures in
Calciosiphonate nautiloid orders Actinocerida, Orthocerida...
- are
constricted at the
septal foremina (the
openings through with the
siphuncular tissues p****). This
feature is also
found in
Silurian Kionoceras, but...
-
Calciosiphonata and a new
order Cyrtocerinida of the
subclass Nautiloidea;
siphuncular structure in the
Ordovician nautiloid Bathmoceras (Cephalopoda)". GFF...
-
fossil straight s****ed nautiloids,
cylindrical calcareous growths ("
siphuncular deposits")
around the
siphuncle can be seen
towards the apex of the s****...
-
deposits well developed,
fusing to form a
thick lining on the
ventral siphuncular wall. The
endosiphuncular canal system consists of a
central canal that...
- Föreningen i
Stockholm Förhandlingar 134(2):115-132 H. Mutvei. 1997.
Siphuncular structure in
Ordovician endocerid cephalopods. Acta
Palaeontologica Polonica...
-
Calciosiphonata and a new
order Cyrtocerinida of the
subclass Nautiloidea;
siphuncular structure in the
Ordovician nautiloid Bathmoceras (Cephalopoda)". GFF...
- interiors,
namely regarding the
generally thin
connecting rings and lack of
siphuncular diaphragms,
showed they are
distinct from the
typical ellesmerocerids...
-
similar to
Paraplectronoceras except for
having more
strongly expanded siphuncular segments and less
concave septa. Chen Jun-yuan et al., 1979 Late Cambrian...
-
Kochoceras of the Actinoceratidae, but with re****bent
septal necks. The
first siphuncular segment is large, broad, and blunt. Selkirkoceras,
which is
known from...
