- was a
modified globe with
meridional symmetry.
Echinozoans lack arms,
brachioles, or
other appendages, and do not at any time
exhibit pinnate structure...
- long thin fine
structures called brachioles,
which were used to trap food
particles and
bring them to the mouth.
Brachioles were
delicate structures, and...
- the
number and
location of
these brachioles,
including the
branching patterns,
increased in the
number of
brachioles and
complexity of the
branching pattern...
- Kinzercystis, It bore a stalk, with
which it
attached to firm substrates; and
brachioles arising as
lateral branches from its arms. It is only
known from the late...
-
grooves extending down the side of the body,
fringed on
either side by
brachioles, like the
pinnules of a
modern crinoid. Eventually,
except for the crinoids...
-
characterized by the
presence of
specialized respiratory structures and
brachiole plates used for feeding. It
ranged from the
Cambrian to the Permian. A...
- "Pelmatozoan arms from the mid-Cambrian of Australia:
Bridging the gap
between brachioles and brachials? Comment:
There is no bridge". Lethaia. 43 (3): 432–440...
-
unusual Ordovician form was the
conical Bolboporites with its
single brachiole. See also List of
echinodermata orders. Prothero, D.R.,2004, Bringing...
- stylophorans,
rested flat on the sea floor. In some
forms the
single ray (
brachiole or aulacop****)
possessed an
ambulacral groove. It has been
claimed that...
- of the cone down in the
sediment and the
broad end upwards. A
single brachiole extended from a hole in this top
surface and bent into the
current like...
