... of de Laubenfels need division into separate classes Hexactinellida and Heteractinida. The Heteractinida appear to be allied ... Demospongia if to any living sponges. The name Hexactinellida does not imply a diagnosis hinging on the ... are not triaxial and are not found in Hexactinellida. The Hexactinellida are also distinguished from other modern sponges (Calcarea, ... of spicules by fusion is not general in Hexactinellida, but is known from only 1 of 2 ... the spicules is no more typical of the Hexactinellida than of the Demospongia. Hexactinellidae Schmidt, 1870 must ...
Tópico(s): Crustacean biology and ecology
1963 - Cambridge University Press | Journal of Paleontology
Andrzej Pisera, Pere Busquets,
... gen. nov. sp., Regadrella concinna nov. sp. (both Hexactinellida, Lyssacinosa), Eurete clava nov. sp., Pleuroguettardia iberica nov. ... almeriae nov. sp., Hexactinella informis nov. sp. (all Hexactinellida, Hexactinosa), Brachiolites munterensis nov. sp., Centrosia viquensis nov. ... eocenicus nov. sp., Rhizocheton robustus nov. sp. (all Hexactinellida, Lychniscosa), Propetrosia pristina nov. gen. nov. sp. (Demospongia, ... gen., nov. sp., Regadrella concinna nov. sp. (deux Hexactinellida, Lyssacinosa), Eurete clava nov. sp., Pleuroguettardia iberica nov. ...
Tópico(s): Marine Biology and Ecology Research
2002 - Elsevier BV | Geobios
Jackson W. F. Chu, Sally P. Leys,
... community structure in three glass sponge reefs (Porifera, Hexactinellida) Jackson W. F. Chu, Sally P. Leys* Department ... sleys@ualberta.ca ABSTRACT: Glass sponge reefs (Porifera, Hexactinellida) are unique to the Pacific coast of Canada. ... community structure in three glass sponge reefs (Porifera, Hexactinellida). Mar Ecol Prog Ser 417:97-113. https:// ...
Tópico(s): Marine and coastal plant biology
2010 - Inter-Research | Marine Ecology Progress Series
Martin Dohrmann, Dorte Janussen, Joachim Reitner, Allen G. Collins, Gert Wörheide,
... high levels of homoplasy. For the third class, Hexactinellida (glass sponges)—predominantly deep-sea inhabitants with unusual ... we ascribe to a more informative morphology in Hexactinellida. We find high support for a close relationship ... the latter may be paraphyletic with respect to Hexactinellida. Homoscleromorpha appears to be the sister group of ...
Tópico(s): Genetic diversity and population structure
2008 - Oxford University Press | Systematic Biology
Wernér E.G. Müller, Jinhe Li, Heinz C. Schröder, Li Qiao, Xiaohong Wang,
... to the silicate weathering. The oldest sponge fossils (Hexactinellida) have been described from Australia, China and Mongolia ... against ultraviolet radiation. The skeletal elements of the Hexactinellida (model organisms Monorhaphis chuni and Monorhaphis intermedia or ... the catabolic enzyme silicase. Both, the spicules of Hexactinellida and of Demospongiae, comprise a central axial canal ...
Tópico(s): Marine Biology and Environmental Chemistry
2007 - Copernicus Publications | Biogeosciences
... vol. 42. Ijima, I., 1901 Studies on the Hexactinellida. 1. (Euplectellidae). Journ. Coll. Sci. Imp. Univ. Tokyo. Ijima, I., 1904 Studies on the Hexactinellida. 1. (Euplectellidae). Journ. Coll. Sci. Imp. Univ. Tokyo. ... Schulze, F. E., 1887 Report on the Challenger Hexactinellida. Schulze, F. E., 1904 Wissensch Ergebn. d. deutsch. Tiefsee-Exped. auf. d. Dampfer “Valdivia.” Bd. 4. Hexactinellida. Jena. Sollas, W. J., 1888 Report on the ...
Tópico(s): Marine Invertebrate Physiology and Ecology
1910 - Wiley | Journal of Experimental Zoology
Four new species of Hexactinellida are described from the northwest coast of North America. Two northern ones from bottom longline sablefish traps set on Bowie ... Farrea schulzei. These additions bring the number of Hexactinellida known from the area (30º–90º N) to ...
Tópico(s): Marine and coastal plant biology
2018 - Q15088586 | Zootaxa
Christian Göcke, Dorte Janussen,
... this expedition showed comparably modest sponge colonization, with Hexactinellida and Demospongiae occurring in similar numbers of species ... distinct geographical distribution pattern of the Weddell-Sea Hexactinellida could be observed, apart from those caused by ...
Tópico(s): Coral and Marine Ecosystems Studies
2011 - Elsevier BV | Deep Sea Research Part II Topical Studies in Oceanography
Hermann Ehrlich, Manfred Krautter, Thomas Hanke, Paul Simon, Christiane Knieb, Sascha Heinemann, Hartmut Worch,
... previously as an endogenous biopolymer within glass sponges (Hexactinellida). We hypothesized that glass sponges, which are considered ... an essential component of the skeletal structures of Hexactinellida. This is the first report of a silica- ...
Tópico(s): Synthetic Organic Chemistry Methods
2007 - Wiley | Journal of Experimental Zoology Part B Molecular and Developmental Evolution
Karri M. Haen, B. Franz Lang, Shirley A. Pomponi, Dennis V. Lavrov,
Glass sponges (Hexactinellida) are a group of deep-water benthic animals that have a unique syncytial organization and possess a characteristic ... of sponges and the phylogenetic position of the Hexactinellida remain contentious. We determined and analyzed the nearly ... Most of our sequence-based phylogenetic analyses place Hexactinellida as the sister group to the Bilateria; however, ...
Tópico(s): Coral and Marine Ecosystems Studies
2007 - Oxford University Press | Molecular Biology and Evolution
Sally P. Leys, K. W. Wilson, Claire Holeton, HM Reiswig, W. Chandler Roberts Austin, Verena Tunnicliffe,
... 10.3354/meps283133 Patterns of glass sponge (Porifera, Hexactinellida) distribution in coastal waters of British Columbia, Canada ... in coastal British Columbia. KEY WORDS: Glass sponges · Hexactinellida · Fjords · Silica · Sponge reefs Full text in pdf ...
Tópico(s): Marine Biology and Environmental Chemistry
2004 - Inter-Research | Marine Ecology Progress Series
Volker Thiel, Martin Blumenberg, Jens Hefter, Thomas Pape, Shirley A. Pomponi, John K. Reed, Joachim Reitner, Gert Wörheide, Walter Michaelis,
... Calcarea). The most prominent lipid compounds in the Hexactinellida comprise C28 to C32 polyenoic fatty acids. Their ... close phylogenetic association of the Demospongiae and the Hexactinellida. Both taxa also show unusual mid-chain methylated ... to each other than either is to the Hexactinellida.
Tópico(s): Invertebrate Immune Response Mechanisms
2002 - Springer Science+Business Media | The Science of Nature
... sponges at the subphylum level. Additional key words: Hexactinellida, Porifera, syncytium, sponge Sponge morphology has been studied ... a very small complement of cell types. The Hexactinellida, however, differ fundamentally from other sponges in having ... 1995). The uniqueness of the construction of the Hexactinellida has been recognized since these animals were first ...
Tópico(s): Coral and Marine Ecosystems Studies
1999 - Wiley | Invertebrate Biology
Claudia Koziol, Sally P. Leys, Isabel M. Müller, Wernér E.G. Müller,
... three classes of the Porifera-Demospongiae, Calcarea and Hexactinellida-are still unresolved, despite the use of molecular ... shock protein [Hsp70] were isolated from Rhabdocalyptus dawsoni [Hexactinellida] and from Sycon raphanus [Calcarea], and compared to ...
Tópico(s): Invertebrate Immune Response Mechanisms
1997 - Oxford University Press | Biological Journal of the Linnean Society
... vols., Berlin. Ijima, I. (1901) Studies on the Hexactinellida. J. Coll. Sci. Imp. Univ. Tokyo, vol. 15, ... 122. Schulze, F. E. (1887) Report of the Hexactinellida collected by H. M. S. Challenger during the ... vol. 21, pt. 53. Schulze, F. E. (1904) Hexactinellida. Wiss. Ergebn. d. Tiefsee Exp. Valdivia, Bd. 4, ...
Tópico(s): Protist diversity and phylogeny
1940 - Wiley | Journal of Morphology
Six new species of Hexactinellida are described from hard bottom communities of shelf, canyon and seamounts of the west coast of North America: Washington, British ... increase of 29% to the known species of Hexactinellida in this area. A completely unique form of ...
Tópico(s): Marine Ecology and Invasive Species
2013 - Cambridge University Press | Journal of the Marine Biological Association of the United Kingdom
Viviana Frisone, Andrzej Pisera, Nereo Preto,
... Mountains, north-eastern Italy. Thirty-two taxa (15 Hexactinellida, 17 Demospongiae) are determined and illustrated, belonging to ...
Tópico(s): Plant and Fungal Species Descriptions
2016 - Taylor & Francis | Journal of Systematic Palaeontology
Sébastien Santini, Quentin Schenkelaars, Cyril Jourda, Marc Duchesne, Hassiba Belahbib, Caroline Rocher, Marjorie Selva, Ana Riesgo, Michel Vervoort, Sally P. Leys, Laurent Kodjabachian, André Le Bivic, Carole Borchiellini, Jean‐Michel Claverie, Emmanuelle Renard,
... glass sponge, Oopsacas minuta , a member of the Hexactinellida. Studying this class of sponge is evolutionary relevant ...
Tópico(s): Marine Ecology and Invasive Species
2023 - BioMed Central | BMC Biology
Georg Steinert, Kathrin Busch, Kristina Bayer, Sahar Kodami, Pedro Martínez Arbizu, Michelle Kelly, Sadie Mills, Dirk Erpenbeck, Martin Dohrmann, Gert Wörheide, Ute Hentschel, Peter J. Schupp,
... phylogenetically diverse deep-sea sponge species (Demospongiae and Hexactinellida) from the South Pacific by 16S rRNA-gene ...
Tópico(s): Aquaculture disease management and microbiota
2020 - Frontiers Media | Frontiers in Microbiology
... off North America and a new species of Hexactinellida, Farrea. cordelli n. sp. The other three sponges ...
Tópico(s): Coral and Marine Ecosystems Studies
2020 - Q15088586 | Zootaxa
Konstantin R. Tabachnick, Jane Fromont, Hermann Ehrlich, Larisa L. Menshenina,
Glass sponges (Class Hexactinellida) are described from the Perth Canyon in the eastern Indian Ocean, resulting in 10 genera being recorded, including 11 ...
Tópico(s): Coral and Marine Ecosystems Studies
2019 - Q15088586 | Zootaxa
Sascha Herzog, Diva J. Amon, Craig R. Smith, Dorte Janussen,
Two new Hexactinellida species from the Clarion-Clipperton Zone (CCZ) in the East Pacific Ocean are described. They are the first ...
Tópico(s): Ichthyology and Marine Biology
2018 - Q15088586 | Zootaxa
Ewa Świerczewska‐Gładysz, Agata Jurkowska, Robert Niedźwiedzki,
... presented taxonomic description of 16 species belonging to Hexactinellida and six species of Demospongiae from Opole area ( ... basins of Central Europe. Two new species of Hexactinellida – Centrosia clavata sp. nov. and Crateromorpha opolensis sp. ...
Tópico(s): Geological formations and processes
2018 - Elsevier BV | Cretaceous Research
Martin Dohrmann, Christopher Kelley, Michelle Kelly, Andrzej Pisera, John N. A. Hooper, Henry M. Reiswig,
Glass sponges (Class Hexactinellida) are important components of deep-sea ecosystems and are of interest from geological and materials science perspectives. The reconstruction ...
Tópico(s): Crustacean biology and ecology
2017 - BioMed Central | Frontiers in Zoology
Sergio Vargas, Martin Dohrmann, Christian Göcke, Dorte Janussen, Gert Wörheide,
Hexactinellida (glass sponges) are abundant and important components of Antarctic benthic communities. However, the relationships and systematics ...
Tópico(s): Coral and Marine Ecosystems Studies
2017 - Springer Science+Business Media | Polar Biology
Henry M. Reiswig, Martin Dohrmann,
... new species and a new genus of dictyonal Hexactinellida (Hexasterophora: Sceptrulophora: Euretidae and Auloplacidae) are described from ...
Tópico(s): Marine Ecology and Invasive Species
2014 - Oxford University Press | Zoological Journal of the Linnean Society
Joseph P. Botting, Lucy A. Muir,
... are not crown-group hexactinellids, but stem-group Hexactinellida or Demospongea, or stem-group Silicea. This suggests ... is a sufficient diagnostic feature of total-group Hexactinellida, but that hexagonal canals were more widely distributed ...
Tópico(s): Marine Sponges and Natural Products
2013 - Wiley | Lethaia
Henry M. Reiswig, Robert P. Stone,
Hexactinellida from deep-water communities of the central Aleutian Islands, Alaska, are described. They were mostly collected ...
Tópico(s): Marine Ecology and Invasive Species
2013 - Q15088586 | Zootaxa
Martin Dohrmann, Christian Göcke, John K. Reed, Dorte Janussen,
... reported of a diphyletic genus in the class Hexactinellida. Here we describe new material of "Rossella" nodastrella ...
Tópico(s): Marine Ecology and Invasive Species
2012 - Q15088586 | Zootaxa
Gert Wörheide, Martin Dohrmann, Dirk Erpenbeck, Claire Larroux, Manuel Maldonado, Oliver Voigt, Carole Borchiellini, Dennis V. Lavrov,
... four main sponge lineages (Classes), that is, Demospongiae, Hexactinellida, Calcarea, and Homoscleromorpha, in detail. While classical systematic ... largely congruent with molecular phylogenies in the class Hexactinellida and in certain parts of Demospongiae and Homoscleromorpha, ...
Tópico(s): Genetic diversity and population structure
2012 - Elsevier BV | Advances in marine biology