-
Ambulacraria /ˌæmbjuːləˈkrɛəriə/, or
Coelomopora /siːləˈmɒpərə/, is a
clade of
invertebrate phyla that
includes echinoderms and hemichordates; a member...
- echinoderms, and
together they form the
clade Ambulacraria, the
sister phylum of the chordates. Chordata,
Ambulacraria, and
possibly Xenacoelomorpha are believed...
- Dunn and colleagues, is
shown below. A
different hypothesis is that
Ambulacraria are
sister to
Xenacoelomorpha together forming Xenambulacraria. Xenambulacraria...
- fish)
Superclass Osteichthyes (bony fish -
includes tetrapods)
Clade Ambulacraria Phylum Hemichordata class Enteropneusta (acorn worms)
class Planctosphaeroidea...
-
analyses suggest that the
xenacoelomorphs are
instead the
sister group of
Ambulacraria forming the
clade Xenambulacraria and that
despite their simple body...
-
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 has been debated.
Authors supporting the...
- of the endoderm. The main
deuterostome phyla are the
Ambulacraria and the Chordata.
Ambulacraria are
exclusively marine and
include acorn worms, starfish...
-
Centroneuralia would be
sister to
Xenambulacraria (Xenacoelomorpha +
Ambulacraria) at the base of Bilateria. Centroneuralia, as a
proposed clade, originates...
- debate, the
proposed alternatives are also
within stem- or crown-group
Ambulacraria. An
alternative phylogeny connecting both
vetulocystids and vetulicolians...
