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Acoela, or the acoels, is an
order of
small and
simple invertebrates in the
subphylum Acoelomorpha of
phylum Xenacoelomorpha, a deep
branching bilaterian...
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forming a
brain in
several phyla and one or more
ganglia in others. The
Acoela are
basal bilaterians, part of the Xenacoelomorpha. They are
small and simple...
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evidence found support for a
sister relationship between the
acoelomate taxa,
Acoela and
Nemertodermatida (together
called Acoelomorpha), and the
remaining bilaterians...
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Archiacanthocephala Eoacanthocephala Palaeacanthocephala (ancient thornheads)
Acoela Nemertodermatida ****ellata (earthworms)
Polychaeta (bristle worms) Sipuncula...
- a
majority of
these falling within the
Crucimusculata infraorder in
Acoela.
Acoela comprise small flattened worms,
classified into a
dozen families. Nemertodermatida...
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mostly black,
brown or gray, but some
larger ones are
brightly colored. The
Acoela and
Nemertodermatida were
traditionally regarded as turbellarians, but are...
- Cestoda. In this
classification the
Turbellaria include the
Acoelomorpha (
Acoela and Nemertodermatida). The name "Turbellaria"
refers to the "whirlpools"...
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Geddes pondered the
nature and
origin of the
green compound of a
local acoela he
called Convoluta schultzii. He
succinctly described "chlorophyll-containing...
- have
developed from the
corners of a
single opening with lips fusing. E.g.
Acoela resemble the
planula larvae of some Cnidaria,
which exhibit some bilaterian...
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class incertae sedis (Family Xenoturbellidae)
Subphylum Acoelomorpha class Acoela Order incertae sedis (16 families)
class Nemertodermatida Order incertae...
