Definitions

1. Deuterostomia is much lower down, probably the second branch of Bilateria to split off after the Acoelomorpha.

Clade

1. On this page, "Deuterostomia" and "deuterostome" always refer to the clade, while "deuterostomy" and "deuterostomous" refer to the developmental pathway.

Large Group

1. Eucoelomates: the Deuterostomia This large group includes all the remaining animals.

Protostomia

1. The bilaterians contain two clades, the protostomia and the deuterostomia. (Web site)
2. Protostomia and Deuterostomia Within the Bilateria, a number of phyla that differ as adults have been linked on the basis of early embryology.
3. In his 2001 book Animal Evolution: Interrelationships of the Living Phyla, he maintains the traditional divisions of Protostomia and Deuterostomia. (Web site)

Deuterostomia

1. Ecdysozoa with eight phyla, including arthropods and roundworms; and Deuterostomia with the echinoderms, chordates, hemichordates and arrow worms).
2. Ecdysozoa with eight phyla, including arthropod s and roundworm s; and Deuterostomia with the echinoderm s, chordate s, hemichordates and arrow worms).
3. Bilateria are currently subdivided into three superclades: Deuterostomia, Ecdysozoa, and Lophotrochozoa. (Web site)

Categories

1. Protostomia
2. Ecdysozoa
3. Protostomes > Lophotrochozoa
4. Hemichordates
5. Nature > Life > Animals > Bilateria
6. Books about "Deuterostomia" in Amazon.com
   

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