Fossil and Recent Sponges [Paperback]

Taxonomic and Phylogenetic Aspects.- Hexactinellida.- New Perspectives on the Hexactinellid Genus Dactylocalyx Stutchbury.- The Hexactinellid Sponge Genus Becksia Schl?ter, 1868 from the Campanian of the NW M?nsterland (Upper Cretaceous, NW Germany).- Observations on the Jurassic Hexactinellid Sponge Tremadictyon radicatum (Quenstedt).- Are Protospongiidae the Stem Group of Modern Hexactinellida?.- Demospongiae.- Demosponge Higher Taxa Classification Re-Examined.- Lithistid Sponges from the Norfolk Rise. Recent and Mesozoic Genera.- Evolution of Paleozoic Heteractinid Calcareous Sponges and Demosponges  Patterns and Records.- The Fossil Record of the Haplosclerid Excavating Sponge Aka de Laubenfels.- Renewed Study of the Type Material of Palaeospongilla chubutensis Ott and Volkheimer (1972).- A Systematic Revision of the Central-Atlantic Halichondrida (Demospongiae, Porifera). Part I: Evaluation of Characters and Diagnosis of Genera.- A Systematic Revision of the Central Atlantic Halichondrida (Demospongiae, Porifera). Part II: Patterns of Distribution of Secondary Metabolites.- Demospongiae and Calcarea with Secondary Basal Skeletons.- Taxonomic Value of Microstructural Features in Calcified Tissue from Recent and Fossil Demospongiae and Calcarea.- Deficient Spiculation in a New Species of Merlia (Merliida, Demospongiae) from the Balearic Islands.- Phylogenetic Aspects and New Descriptions of Spicule-Bearing Hadromerid Sponges with a Secondary Calcareous Skeleton (Tetractinomorpha, Demospongiae).- Further Evidence for Poriferan Affinities of Favositids.- Sphinctozoa: An Overview.- A Cautionary Tale: Difficulties in Inferring Living Morphology from Post-Depositional Appearance.- Calcarea.- Recent Calcarea with a Reinforced Skeleton (Pharetronids).- Aspects of Sponge Biology.- Demospongiae.- Morphometric and Biochemical Differences Between Sympatric Populations of the Clathria Spicata Species Complex (Demospongiae: Poecilosclerida: Microcionidae) from Northernl“(