Fossil and Recent Sponges

Front Matter....Pages I-XVIII
Front Matter....Pages 1-1
Introduction....Pages 3-6
New Perspectives on the Hexactinellid Genus Dactylocalyx Stutchbury....Pages 7-20
The Hexactinellid Sponge Genus Becksia Schlüter, 1868 from the Campanian of the NW Münsterland (Upper Cretaceous, NW Germany)....Pages 21-35
Observations on the Jurassic Hexactinellid Sponge Tremadictyon radicatum (Quenstedt)....Pages 36-42
Are Protospongiidae the Stem Group of Modern Hexactinellida?....Pages 43-53
Demosponge Higher Taxa Classification Re-Examined....Pages 54-71
Lithistid Sponges from the Norfolk Rise. Recent and Mesozoic Genera....Pages 72-82
Evolution of Paleozoic Heteractinid Calcareous Sponges and Demosponges — Patterns and Records....Pages 83-101
The Fossil Record of the Haplosclerid Excavating Sponge Aka de Laubenfels....Pages 102-120
Renewed Study of the Type Material of Palaeospongilla chubutensis Ott and Volkheimer (1972)....Pages 121-133
A Systematic Revision of the Central-Atlantic Halichondrida (Demospongiae, Porifera). Part I: Evaluation of Characters and Diagnosis of Genera....Pages 134-149
A Systematic Revision of the Central Atlantic Halichondrida (Demospongiae, Porifera). Part II. Patterns of Distribution of Secondary Metabolites....Pages 150-158
Taxonomic Value of Microstructural Features in Calcified Tissue from Recent and Fossil Demospongiae and Calcarea....Pages 159-169
Deficient Spiculation in a New Species of Merlia (Merliida, Demospongiae) from the Balearic Islands....Pages 170-178
Phylogenetic Aspects and New Descriptions of Spicule-Bearing Hadromerid Sponges with a Secondary Calcareous Skeleton (Tetractinomorpha, Demospongiae)....Pages 179-211
Further Evidence for Poriferan Affinities of Favositids....Pages 212-223
“Sphinctozoa”: An Overview....Pages 224-241
A Cautionary Tale: Difficulties in Inferring Living Morphology from Post-Depositional Appearance....Pages 242-251
Recent Calcarea with a Reinforced Skeleton (“Pharetronids”)....Pages 252-265
Front Matter....Pages 267-267
Introduction....Pages 269-270
Front Matter....Pages 267-267
Morphometric and Biochemical Differences Between Sympatric Populations of the Clathria “Spicata” Species Complex (Demospongiae: Poecilosclerida: Microcionidae) from Northern Australia....Pages 271-288
Histological Indications of the Phylogenesis of the Haplosclerida (Demospongiae, Porifera)....Pages 289-298
Symbiosis of Spongilla lacustris (Spongillidae) and Green Algae. Algae Uptake, Distribution and Final Whereabouts....Pages 299-305
Cortical Structure and Adaptation in the Genus Tethya (Porifera, Demospongiae)....Pages 306-312
A New Mediterranean Species of Axinella Detected by Biochemical Genetic Methods....Pages 313-321
Non-Spicular Biomineralization in Calcified Demosponges....Pages 322-340
On the Structure of Calcareous Sponge Spicules....Pages 341-359
Morphological and Structural Variations in Clathrina clathrus (Porifera, Calcispongiae)....Pages 360-371
Front Matter....Pages 373-373
Introduction....Pages 375-377
Adaptation of the Hexactinellid Sponges to Deep-Sea Life....Pages 378-386
Influence of Different Current Regimes on the Growth Form of Halichondria panicea Pallas....Pages 387-394
The Sponge Fauna Associated with Arca noae L. (Mollusca, Bivalvia)....Pages 395-403
Monthly Variations in the Size of Spicules of the Haplosclerid Sponge, Haliclona rosea (Bowerbank)....Pages 404-420
Vicariance Biogeography Using North Atlantic Chalinidae (Demospongiae)....Pages 421-431
Colonization, Life Cycles and Competition in a Freshwater Sponge Association....Pages 432-444
Chaetetid Habitats....Pages 445-455
Eastern Tethyan Sponge Buildups at the Close of the Paleozoic (Uppermost Permian, Sichuan/China)....Pages 456-464
Pharetronids in Triassic Reefs....Pages 465-476
Sponge Bioherms from Epicontinental Triassic Formations of Upper Silesia (Southern Poland)....Pages 477-485
Upper Jurassic Sponge Megafacies in Spain: Preliminary Report....Pages 486-497
Front Matter....Pages 373-373
The Spongiolithic Facies in the Upper Jurassic of Spain....Pages 498-505
Ecologic History of the Oxfordian Sponge Assemblage in the Polish Jura Chain....Pages 506-515
Baffling, Binding, or Debris Accumulation? Ecology of Upper Jurassic Sponge-Bacterial Buildups (Oxfordian, Franconian Alb, Southern Germany)....Pages 516-521
Fauna Associated with the Sponges Aplysina archeri and Aplysina lacunosa in a Coral Reef of the Archipiélago de Los Roques, National Park, Venezuela....Pages 522-542
Environmental Control on Fossilization of Siliceous Sponge Assemblages: A Proposal....Pages 543-553
Stratigraphic Distribution, Lithological Paragenesis, Depositional Environments and Diagenesis of Fossil Siliceous Sponges in Europe....Pages 554-577
Back Matter....Pages 578-595