TY - CHAP A1 - Reitner, Joachim ED - Reitner, Joachim T1 - Phylogenetic aspects and new descriptions of Spicule-Bearing, Hadromerid Sponges with a secondary calcareous skeleton (Tetractinomorpha, Demospongiae) T2 - Fossil and recent sponges Y1 - 1991 DO - 10.23689/fidgeo-2805 PB - Springer UR - http://resolver.sub.uni-goettingen.de/purl?gldocs-11858/7118 ER -