This finding has many implications for the evolutionary interpretation of early animal traits and sponge development. ![]() However, based on recent phylogenomic analyses, we suggest that the phylum Porifera could well be monophyletic, in accordance with cladistic analyses based on morphology. ![]() Several studies have suggested that sponges are paraphyletic. Here, we review the current state of the deep phylogeny of sponges. Yet, the phylogeny and systematics of sponges are to some extent still unresolved, and there is an on-going debate about the exact branching pattern of their main clades and their relationships to the other non-bilaterian animals. They are arguably the earliest-branching metazoan taxon, and therefore, they have great significance in the reconstruction of early metazoan evolution. Sponges ( phylum Porifera) are a diverse taxon of benthic aquatic animals of great ecological, commercial, and biopharmaceutical importance. ![]() Wörheide, G Dohrmann, M Erpenbeck, D Larroux, C Maldonado, M Voigt, O Borchiellini, C Lavrov, D V Deep phylogeny and evolution of sponges ( phylum Porifera).
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