Molecular taxonomy and phylogeny of the Geodiidae (Porifera, Demospongiae, Astrophorida) – combining phylogenetic and Linnaean classification

  title={Molecular taxonomy and phylogeny of the Geodiidae (Porifera, Demospongiae, Astrophorida) – combining phylogenetic and Linnaean classification},
  author={Paco C{\'a}rdenas and Hans Tore Rapp and Christoffer Schander and Ole Secher Tendal},
  journal={Zoologica Scripta},
Cárdenas, P., Rapp, H. T., Schander, C. & Tendal, O. S. (2009). Molecular taxonomy and phylogeny of the Geodiidae (Porifera, Demospongiae, Astrophorida) – combining phylogenetic and Linnaean classification.—Zoologica Scripta, 39, 89–106. 

Taxonomy, biogeography and DNA barcodes of Geodia species (Porifera, Demospongiae, Tetractinellida) in the Atlantic boreo-arctic region

Geodia species north of 60 degrees N in the Atlantic appeared in the literature for the first time when Bowerbank described Geodia barretti and G.macandrewii in 1858 from western Norway. Since then

Geodia starki sp. nov. (Porifera, Demospongiae, Astrophorida) from the Aleutian Islands, Alaska, USA

A new species of Geodia is described from the North Pacific, collected in the summer of 2012 in the western Aleutian Islands, which differs from all known species by the possession of two categories of sterrasters and exceptionally large megascleres.

Molecular phylogeny of Abyssocladia (Cladorhizidae: Poecilosclerida) and Phelloderma (Phellodermidae: Poecilosclerida) suggests a diversification of chelae microscleres in cladorhizid sponges

Molecular phylogeny of Abyssocladia and Phelloderma suggests a diversification of chelae microscleres in cladorhizid sponges.

Integrative Taxonomy and Molecular Phylogeny of Genus Aplysina (Demospongiae: Verongida) from Mexican Pacific

The results constitute one of the first approximations to integrative taxonomy, phylogeny and evolutionary biogeography of Eastern Pacific marine sponges; an approach that will significantly contribute to the authors' better understanding of their diversity and evolutionary history.

Molecular Phylogeny of the Astrophorida (Porifera, Demospongiae p) Reveals an Unexpected High Level of Spicule Homoplasy

The Astrophorida is a larger order than previously considered, comprising ca.

No longer Demospongiae: Homoscleromorpha formal nomination as a fourth class of Porifera

Within the currently more widely accepted hypothesis of a monophyletic Porifera, it is formally proposed here to raise Homoscleromorpha to the class rank (the fourth one), following the PhyloCode.

Integrating morphological and molecular taxonomy with the revised concept of Stelligeridae (Porifera: Demospongiae)

This study reinforces and extends the findings of previous molecular studies showing that there is a close relationship between species assigned to the sponge genera Halicnemia, Higginsia,

Polymastiidae (Porifera: Demospongiae) of the Nordic and Siberian Seas

Polymastiidae (Porifera: Demospongiae) of the Nordic and Siberian Seas are revised and compared with the related species of the North Atlantic based on the morphological data from the type and

Phylogeny of Tetillidae (Porifera, Demospongiae, Spirophorida) based on three molecular markers.

Proposal for a revised classification of the Demospongiae (Porifera)

The deletion of polyphyletic taxa, the use of resurrected or new names for new clades and the proposal of new family groupings will improve the comparability of studies in a wide range of scientific fields using sponges as their object of study.



Taxonomy and biology of Hyrrokkin sarcophaga gen. et sp. n., a parasitic foraminiferan (Rosalinidae)

A foraminiferan which infests mainly bivalves, especially Acesta excavata, sponges of the family Geodiidae and the stone corals Lophelia pertusa and Madrepora oculata, which penetrates the body-wall of its host and feeds on its soft tissues.

Systematics and evolution of Demospongiae

A general consensus among spongologists has not yet been achieved regarding this group and the phylogenetic relationships within Demospongsiae and between Demospongiae and other clades of Porifera and metazoans are still unresolved.

Family Tetillidae Sollas, 1886

Tetillidae Sollas (Demospongiae, Spirophorida) are for the most part globular sponges belonging to a small order on account of their possession of sigmaspire microscleres and triaene megascleres.

Phylogenetic relationships of freshwater sponges (Porifera, Spongillina) inferred from analyses of 18S rDNA, COI mtDNA, and ITS2 rDNA sequences

The phylogenetic relationships of nine species of freshwater sponges, representing the families Spongillidae, Lubomirskiidae, and Metaniidae, were inferred from analyses of 18S rDNA, cytochrome

On the presence of anatriaenes in Pachastrellidae (Porifera, Demospongiae): evidence for a new phylogenetic family concept.

The present study confirmed the occurrence of anatriaenes in Characella tripodaria and P. rudiastra, and the generic diagnoses of Poecillastra andCharacella have been amended.

The chiton Hanleya nagelfar (Polyplacophora, Mollusca) and its association with sponges in the European Northern Atlantic

A recently discovered sponge–sponge–chiton association in Northern Scandinavian waters is described and a specimen of H. nagelfar was found to display selective feeding and homing behaviour on a massive sponge covered by an encrusting sponge.

Family Geodiidae Gray, 1867

Geodiidae Gray (Demospongiae, Astrophorida) includes astrophorid sponges with sterrasters as the main cortical microsclere and various forms of triaenes among the megascleres. Other microscleres

Family Ancorinidae Schmidt, 1870

The diagnostic characters traditionally used for separating genera within Ancorinidae are the type of microscieres, the presence or absence of triaenes and the presence/absence of particular inhalant and/or exhalant structures (tubes).

Redescription and resurrection of Pachymatisma normani (Demospongiae: Geodiidae), with remarks on the genus Pachymatisma

Using a partial sequence of the cytochrome c oxidase subunit I (COI) and an ITS1-5.8-ITS2 nuclear fragment, it is shown that consistent genetic differences exist between the two species P. johnstonia from P. normani.