@article {18335, title = {Mitochondrial genome data support the basal position of Acoelomorpha and the polyphyly of the Platyhelminthes}, journal = {Molecular Phylogenetics and Evolution}, volume = {33}, number = {2}, year = {2004}, pages = {321-332}, abstract = {We determined 9.7. 5.2. and 6.8kb, respectively, of the mitochondrial genomes of the acoel Paratomella rubra, the nemertodermatid Nemertoderma westbladi, and the free-living rhabditophoran platyhelminth Microstomum lineare. The identified gene arrangements are unique among metazoans, including each other, sharing no more than one or two single gene boundaries with a few distantly related taxa. Phylogenetic analysis of the amino acid sequences inferred from the sequenced genes confirms that the acoelomorph flatworms (acoels + nemertodermatids) do not belong to the Platyhelminthes, but are, instead, the most basal extant bilaterian group. Therefore, the Platyhelminthes, as traditionally constituted, is a polyphyletic phylum. (C) 2004 Elsevier Inc. All rights reserved.}, author = {Ruiz-Trillo,I and Riutort,M and Fourcade,HM and Baguna,J and Boore,JL} } @article {5423, title = {Acoel flatworms: earliest extant bilaterian metazoans, not members of Platyhelminthes.}, journal = {Science}, volume = {283}, year = {1999}, month = {1999}, pages = {1919 - 1923}, keywords = {Paratomella rubra}, author = {Ruiz-Trillo,I and Riutort,M and Littlewood,DTJ and Herniou,EA and Baguna,J} } @article {5424, title = {Mitochondrial genome data support the basal position of Acoelomorpha and the polyphyly of the Platyhelminthes.}, journal = {Mol Phylog Evol}, volume = {33}, year = {2004}, month = {2004}, pages = {321 - 332}, keywords = {Paratomella rubra}, author = {Ruiz-Trillo,I and Riutort,M and Fourcade,HM and Baguna,J and Boore,JL} }