@article {207,
	title = {Phylogeny and Evolution of Calcareous Sponges: Monophyly of Calcinea and Calcaronea, High Level of Morphological Homoplasy, and the Primitive Nature of Axial Symmetry},
	journal = {Systematic Biology},
	volume = {52},
	year = {2003},
	month = {6/2003},
	pages = {311 - 333},
	issn = {1076-836X},
	doi = {10.1080/10635150390196966},
	author = {Manuel, Michael and Borchiellini, Carole and Alivon, Eliane and Le Parco, Yannick and Boury-Esnault, Jean Vacelet Nicole}
}
@article {5,
	title = {Phylogeny and Evolution of Glass Sponges (Porifera, Hexactinellida)},
	journal = {Systematic Biology},
	volume = {57},
	number = {3},
	year = {2008},
	pages = {388-405},
	chapter = {388},
	keywords = {1870, Hexactinellida Schmidt},
	author = {Dohrmann, Martin and Janussen, Dorte and Reitner, Joachim and Collins, Allen G. and Woerheide, Gert}
}
