-
Ambulacraria /ˌæmbjuːləˈkrɛəriə/, or
Coelomopora /siːləˈmɒpərə/, is a
clade of
invertebrate phyla that
includes echinoderms and hemichordates; a member...
- Dunn and colleagues, is
shown below. A
different hypothesis is that
Ambulacraria are
sister to
Xenacoelomorpha together forming Xenambulacraria. Xenambulacraria...
- echinoderms, and
together they form the
clade Ambulacraria, the
sister phylum of the chordates. Chordata,
Ambulacraria, and
possibly Xenacoelomorpha are believed...
- fish)
Superclass Osteichthyes (bony fish -
includes tetrapods)
Clade Ambulacraria Phylum Hemichordata class Enteropneusta (acorn worms)
class Planctosphaeroidea...
-
blood vessel.
Together with the echinoderms, the
hemichordates form the
Ambulacraria,
which are the
closest extant phylogenetic relatives of chordates. Thus...
-
which instead posits that
Xenacoelomorpha is most
closely related to
Ambulacraria.
Which hypothesis is
correct is controversial.
Authors supporting the...
-
analyses suggest that the
xenacoelomorphs are
instead the
sister group of
Ambulacraria forming the
clade Xenambulacraria and that
despite their simple body...
-
Cambroernida have a
terminal ****
rathre than a post-anal tail.
Since Ambulacraria is the sister-group of the
chordates within the deuterostomes, this suggests...
- out of
Bilateria and
Phylum Xenacoelomorpha is
basal Phylum Chordata Ambulacraria (unranked)
Phylum Hemichordata Phylum Echinodermata Phylum Cambroernida...
-
other studies finding that
xenacoelomorphs are more
closely related to
Ambulacraria than to
other bilaterians.
Protostomes and
deuterostomes differ in several...
