@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}
}
