Acoela, or the acoels, is an order of small and simple invertebrates in the subphylum Acoelomorpha of phylum Xenacoelomorpha, a deep branching bilaterian...

evidence found support for a sister relationship between the acoelomate taxa, Acoela and Nemertodermatida (together called Acoelomorpha), and the remaining bilaterians...

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...

a majority of these falling within the Crucimusculata infraorder in Acoela. Acoela comprise small flattened worms, classified into a dozen families. Nemertodermatida...

Eoacanthocephala Palaeacanthocephala (ancient thornheads) Polyacanthocephala Acoela Nemertodermatida Clitellata (earthworms) Polychaeta (bristle worms) Sipuncula...

mostly black, brown or gray, but some larger ones are brightly colored. The Acoela and Nemertodermatida were traditionally regarded as turbellarians, but are...

1007/s00227-010-1516-3. ISSN 1432-1793. Winsor, Leigh (1990). "Marine Turbellaria (Acoela) from North Queensland". Memoirs of the Queensland Museum. 28: 785–800....

Cestoda. In this classification the Turbellaria include the Acoelomorpha (Acoela and Nemertodermatida). The name "Turbellaria" refers to the "whirlpools"...

G.; Chiodin, M.; Salvenmoser, W.; Tyler, S.; Martinez, P. (2012). "The Acoela: On their kind and kinships, especially with nemertodermatids and xenoturbellids...

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...