Groups of Animals.

http://en.wikipedia.org/wiki/Animal

Ctenophora, Porifera, Placozoa, Cnidaria and Bilateria

Phylogenetic analysis suggests that the Porifera and Ctenophora diverged before a clade (ParaHoxozoa) that gave rise to the Bilateria, Cnidaria and Placozoa.Another study based on the presence or absence of introns suggests that Cnidaria, Porifera and Placozoa may be a sister group of Bilateria and Ctenophora.A December, 2013, study,and a June, 2014, study both concluded, using entirely distinct methodologies, that the cladogram of animals is:

	Choanoflagellata
Animal	Ctenophora    Porifera Placozoa Cnidaria Bilateria