-
echinoderms and hemichordates; a
member of this
group is
called an
ambulacrarian.
Phylogenetic analysis suggests the
echinoderms and
hemichordates separated...
-
Deuterostomes consist of
chordates (which
include the vertebrates) and
ambulacrarians. It
seems likely that the 555
million year old
Kimberella was a member...
- stem-chordate, a hemichordate, a stem-vertebrate, a stem-deuterostome, an
ambulacrarian, a
bilaterian of
uncertain placement, as a
protostome of
uncertain position...
-
Phlogites is a
member of the
extinct ambulacrarian stem
group Cambroernida,
occupying an
intermediate position between the
basal Herpetogaster and the...
- hemichordate. The
Ambulacrarian context of the
echinoderms is
shown below,
simplified from Li et al. 2023, with the
possible ambulacrarian placements of the...
-
phylogenetic placement at the base of the
ambulacrarian tree, as
suggesting that the last
common ancestor of the
ambulacrarians might have
already had a planktonic...
-
Ambulacrarians Chordates...
-
Deuterostomia (
Ambulacrarians and chordates) Protostomia...
- crown-chordates. This is in part due to the Cambroernida,
which are
basal stem-
ambulacrarians,
being discovered to
share characteristics such as a
terminal **** with...
-
ambulacrarians chordates...