A new study reaffirms that sponges are the oldest animal phylum – and restores the classical ... National Academy of Sciences (PNAS). Sponges (Porifera), comb jellies (Ctenophora), the true ...

Sponges (phylum Porifera) are early-diverging metazoa renowned for establishing complex microbial symbioses. Here we present a global Porifera microbiome survey, set out to establish the ...