Endoskeleton three phyla and one subclass of animals, endoskeletons of various complexity are found: Chordata, Echinodermata, Porifera, and Coleoidea. An endoskeleton may function purely for support (as in the case of sponges), but often serves as an attachment site for muscle and a mechanism for transmitting muscular forces. A true endoskeleton is derived from mesodermal tissue. Such a skeleton is present in echinoderms and chordates. The poriferan 'skeleton' consists of microscopic calcareous or siliceous spicules or a spongin network. The Coleoidae do not have a true endoskeleton in the evolutionary sense; there, a mollusk exoskeleton evolved into several sorts of internal
Phyla-Vell written by Christos Gage. Leading on from this appearance she is part of the line-up for a new Guardians of the Galaxy. After Genis-Vell, then known as Captain Marvel, previously destroyed and recreated the universe, the "new" version was subtly altered with Phyla-Vell's existence being one of the changes. It is revealed that she is the second artificially created offspring of Captain Mar-Vell who was created by her mother Elysius in the "new" universe because her first attempt (Genis-Vell) had been so successful. Initially her origin conflicted with previously established storylines, but this is resolved in "Captain Marvel" (vol. 4)