Cárdenas, P., Rapp, H. T., Schander, C. & Tendal, O. S. (2009). Molecular taxonomy and phylogeny of the Geodiidae (Porifera, Demospongiae , Astrophorida) – combining phylogenetic and Linnaean classification.— Zoologica Scripta, 39 , 89–106. According to the fossil records, the Geodiidae represents o...