- Nautiloidea,
whose members have a
rigid outer s**** for protection, the
coleoids have at most an
internal s****
called cuttlebone or
gladius that is used...
-
Cephalopod intelligence is a
measure of the
cognitive ability of the
cephalopod class of molluscs.
Intelligence is
generally defined as the
process of...
- All
octopuses and most
cephalopods are
considered to be
color blind.
Coleoid cephalopods (octopus, squid, cuttlefish) have a
single photoreceptor type...
-
short arms and two long tentacles. It is
hypothesized that the
ancestral coleoid had five
identical pairs of limbs, and that one
branch of
descendants evolved...
-
extinct ammonoids (ammonites) and
living coleoids (such as squid, octopus, and kin).
While ammonoids and
coleoids are
monophyletic clades with exclusive...
- some fish
moved into
fresh water while the
coleoids remained in
marine environments. The
ancestral coleoid was
probably nautiloid-like with a
strait septate...
-
squid stomachs.
Reproduction of the
vampire squid is
unlike any
other coleoid cephalopod.
During mating the
males p**** a “packet” of
sperm to a female...
-
Sepiadariidae is a
family of
coleoid cephalopods in the
order Sepiida.
Genus Sepiadarium Sepiadarium auritum Sepiadarium austrinum,
southern bottletail...
- long-lasting
lineages Goniatite and
ceratite ammonoids Probable coleoid ancestor Bactritida Early coleoids: Jeletzkya?, Gordoniconus,
Syllipsimopodi Earliest belemnoids:...
-
Formation of the Yezo
Group in Hokkaido. It is
possibly the
largest fossil coleoid ever described.
Yezoteuthis is
known from a
single upper jaw that shares...
