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Citation for Study 798

About Citation title: "Acoel flatworms: earliest extant bilaterian metazoans, not members of the Platyhelminthes.".
About This study was previously identified under the legacy study ID S655 (Status: Published).

Citation

Ruiz-trillo I., Riutort M., Littlewood D., Herniou E., & Bagun J. 1999. Acoel flatworms: earliest extant bilaterian metazoans, not members of the Platyhelminthes. Science, 283: 1919-1923.

Authors

  • Ruiz-trillo I.
  • Riutort M.
  • Littlewood D.
  • Herniou E.
  • Bagun J.

Abstract

Because of their simple organization the Acoela have been considered to be either primitive bilaterians or descendants of coelomates through secondary loss of derived features. Sequence data of 18S ribosomal DNA genes from non-fast evolving species of acoels and other metazoans reveal that this group does not belong to the Platyhelminthes but represents the extant members of the earliest divergent Bilateria, an interpretation that is supported by recent studies on the embryonic cleavage pattern and nervous system of acoels. This study has implications for understanding the evolution of major body plansl, and for perceptions of the Cambrian evolutionary explosion.

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About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S798
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