Porifera collection MNHN

porifera  Anatomy and Physiology Porifera possess no head and no tail; they are basal metazoans characterized by the absence of true tissues , a Porifera contain the sponges: the most ancient of all animal groups They originated in the Cambrian period around 600 million years ago

The phylum that sponges belong to is known as Phylum Porifera Poriferans belong to Kingdom Animalia due to being multicellular, their reliance on external Porifera Language; Watch · Edit · Aplysina aerophoba Taxonavigation edit Superregnum: Eukaryota Cladus: Unikonta Cladus: Opisthokonta Cladus

Porifera are the most primitive of animals and thus have an early branch on the animal phylogenetic tree, so they're likely candidates for Porifera Examples Sycon is a Genus found within Class Calcarea These sponges are typically radially symmetrical and appear as tubes They are hermaphroditic