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 T2 - Fossil and recent sponges Y1 - 1991 DO - 10.23689/fidgeo-1808 PB - Springer CY - Berlin [u.a.] UR - http://hdl.handle.net/11858/00-1735-0000-0001-33AF-A ER -