All animals share a common ancestor.
Sponges are basal animals.
Eumetazoa is a clade of animals with true tissues.
Most animal phyla belong to the clade Bilateria.
Chordates and some other phyla belong to the clade Deuterostomia.
Member of a clade of animals with true tissues.
member of a clade of animals with bilateral symmetry and three germ layers.
Member of a group of animal phyla identified as a clade by molecular evidence. Many ecdysozoans are molting animals.
refers to animals in the taxa who either develop a lophophore or go through the trochophore larva stage.
In some lophotrochozoan animals, including brachiopods, a crown of ciliated tentacles that surround the mouth and function in feeding.
Distinctive larval stage observed in some lophotrochozoan animals, including some annelids and molluscs.