https://www.sciencedaily.com...
..."In 2008, one of the early phylogenomic studies fingered the comb jellies (aka ctenophores) as the earliest members of the animal kingdom, rather than sponges.....
...In this fashion, they determined that comb jellies have considerably more genes which support their "first to diverge" status in the animal lineage than do sponges."...
ebuc