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SarĂ , M.; Burlando, B. (1994). Phylogenetic reconstruction and evolutionary hypotheses in the family Tethyidae (Demospongiae). In: Van Soest RWM, van Kempen TMG, Braekman JC (eds) Sponges in Time and Space. Biology, Chemistry, Paleontology. Balkema, Rotterdam, pp 111-116.