Bilateria
Bilateria (nomen a Bertholdo Hatschek anno 1888 statutum) est Animalium cladus, sub Eumetazois ordinata, cui taxa subordinata Protostomia et Deuterostomia attributa sunt. Bilateria e microfossilibus aevi Ediacarii distingui possunt.

Notae 
 Olga I. Raikova, M. Reuter, Ulf Jondelius, Margaretha K. S. Gustafsson, (2000). An immunocytochemical and ultrastructural study of the nervous and muscular systems of Xenoturbella westbladi (Bilateria inc. sed.), Zoomorphology 120(2): 107-118.
 Baguñà, J. & Riutort, M. 2004. The dawn of bilaterian animals: the case of acoelomorph flatworms. BioEssays 26: 1046-1057.
 Brusca, R.C. & Brusca, G.J. 1990. Invertebrates. Sinauer Associates, Sunderland.
 Cavalier-Smith. 1998. A revised six-kingdom system of life. Biol. Rev. 73: 203-266.
 Giribet, G., Distel, D.L., Polz, M., Sterrer, W. & Wheeler, W.C. 2000. Triploblastic Relationships with Emphasis on the Acoelomates and the Position of Gnathostomulida, Cycliophora, Plathelminthes, and Chaetognatha: A Combined Approach of 18S rDNA Sequences and Morphology. Syst. Biol. 49(3): 539-562.

Nexus externi 

 Bilateria - Animaldiversityweb

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Taxa Hatschek
Taxa 1888
Taxa intercalaria
Praecambrio nata