-
possible in body plans.
These are
radial (cylindrical) symmetry, bilateral,
biradial and
spherical symmetry.
While the
classification of
viruses as an "organism"...
-
symmetry as larvae, and are now in the Bilateria. Ctenop****s
exhibit biradial or
rotational symmetry,
defined by
tentacular and
pharyngeal axes, on which...
-
exhibit radial symmetry, ctenop****s have two anal
canals which exhibit biradial symmetry (half-turn
rotational symmetry). The
position of the ctenop****s...
- Additionally,
there are two
distinct axes
known as
optical ray axes or
biradials along which the
group velocity of the
light is
independent of polarization...
-
possible radial axes and medio-peripheral (half-) axes. However, some
biradially symmetrical comb
jellies do have
distinct "tentacular" and "pharyngeal"...
- quintic, quintile, quintipara, quintus,
semiquintile radius radi- ray,
spoke biradial, cir****radius, interradial, irradiance, irradiate, irradiation, multiradial...
- one another, and the
symmetry of the
scleractinian skeleton is
radial or
biradial. This
pattern of
septal insertion is
termed "cyclic" by paleontologists...
- ****umed to have
planktotrophic larvae. The
cleavage of
bryozoan eggs is
biradial, in
other words the
early stages are
bilaterally symmetrical. It is unknown...
- to the
Middle Silurian. It has pear-shaped
autozooecia which grow in a
biradial pattern, and its
colonies have a
dichotomously branching shape. Its laminated...
-
fossil with no
clear diagnostic characters Russia
Aspidella Billings 1872
biradial discoid fossil Canada
Astra Grytsenko 2016 Ukraine
Atakia Palij 1979...
