Ancestors and urbilateria.
Valentine
James W
JW
Department of Integrative Biology and Center for Integrative Genomics, University of California, Berkeley, CA 94720, USA. jwvsossi@socrates.berkeley.edu
D000818:Animals; D002965:Classification / Q000379:methods; D005057:Eukaryotic Cells / Q000145:classification*; D049810:Genetic Speciation; D016678:Genome; D010802:Phylogeny