- Thectardis,
appear to have
emerged in the group.
Characteristics of
eumetazoans include true
tissues organized into germ layers, the
presence of neurons...
-
monophyletic with all
eumetazoans,
including the bilaterians. This
suggests that the
gastrulation and the
gastrula stage are
universal for
eumetazoans. It has been...
-
ectoderm and
endoderm – the "external" and "internal" cell
layers in
eumetazoans – i.e. the
structures corresponding functionally to one
another have...
- germ
layers in
vertebrates are
particularly pronounced; however, all
eumetazoans (animals that are
sister taxa to the sponges)
produce two or
three primary...
-
colony rather than a
multicellular organism itself. All
other animals are
eumetazoans,
which do have
differentiated tissues. On occasion,
Parazoa reunites...
- PMID 10781044. Xiao, S.; Yuan, X. & Knoll, A.H. (5
December 2000). "
Eumetazoan fossils in
terminal Proterozoic phosphorites?".
Proceedings of the National...
-
differentiated into
separate tissues and
these animals are also
known as
eumetazoans. They have an
internal digestive chamber, with one or two openings; the...
- 24-isopropylcholesterol,
which is said to be
produced by
demosponges but not by
eumetazoans ("true animals", i.e.
cnidarians and bilaterians).
Since choanoflagellates...
-
suggested that
chancellorids represent an
independent group of
basal eumetazoans.
Chancelloriid fossils have been
found in many
parts of the world, including...
-
actin and
probably also of myosin,
which occur in the
muscle cells of
eumetazoans [citation needed]. In the placozoans, they
ensure that the individual...
