- adults; the most
notable exception is the echinoderms,
which extend to
pentaradial symmetry as adults, but are only
bilaterally symmetrical as an embryo...
- however, they
initially develop with
mirror symmetry as larvae, then gain
pentaradial symmetry later.
Hexamerism is
found in the
corals and sea
anemones (class...
-
brachiopods (unhinged lamps****), hyoliths, bryozoans, graptolites,
pentaradial echinoderms (e.g. blastozoans,
crinozoans and eleutherozoans), and numerous...
- urchins, sea cu****bers and
others are also included,
since they are
pentaradial,
meaning they have five
discrete rotational symmetry.
Echinoderm larvae...
-
Helicocystis is a stalked,
spiralling pentaradial echinoderm known from the
Cambrian Jbel
Wawrmast Formation. Smith, A. B.; Zamora, S. (2013). "Cambrian...
-
animals with
bilateral symmetry.
Although adult echinoderms possess pentaradial symmetry,
their larvae are ciliated, free-swimming
organisms with bilateral...
-
Brachiolaria have
bilateral symmetry,
unlike the
adult starfish,
which have a
pentaradial symmetry.
Starfish of the
order Paxillosida (Astropecten and Asterina)...
-
urchins of
canonical form, with the test
mostly spherical,
bearing a
pentaradial symmetry from the
mouth at the
center of the oral face to the **** on...
-
based on its
pentaradial symmetry, but this
comparison is a bit far-fetched
since echinoderms are not the only
organisms to have
pentaradial symmetry. It...
-
reproduce these results. Like all echinoderms, sea cu****bers
possess pentaradial symmetry, with
their bodies divided into five
nearly identical parts...
