By Dr. Joachim Reitner, Prof. Dr. Helmut Keupp (auth.), Dr. Joachim Reitner, Prof. Dr. Helmut Keupp (eds.)
Fossil and up to date Sponges comprises articles on taxonomic, phylogenetic and ecological points of sponges of either organic and paleontological curiosity. They specialize in 3 major themes: phylogeny and systematics, biology, and paleoecology of sponges. The reader is on the market an outline over crucial elements of present sponge study: - institution of a brand new taxonomy in response to mono phyletic teams (phylogenetic systematics) together with fresh and fossil taxa - new ideas of the biomineralisation of sponge skeletons - palaeoenvironmental research of fossil sponge buildups.
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Extra resources for Fossil and Recent Sponges
ConcIusions 1. Hexactines are a constitutive character of the monophylum Hexactinellida. 2. The Protospongiidae were not the "primitive" ancestors of all later Hexactinellida, but more reasonably a highly specialized clade ofthe taxon. The characters required to establish the stem group of at least some modern Hexactinellida dictyonal sponges are present in various Later Paleozoic hexactinellids such as the Late Devonian Gabelia or Mattaspongia.
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