With the completion of a single unified classification, the Systema Porifera (SP) and
subsequent development of an online species database, the World Porifera Database …

Systematics is nowadays facing new challenges with the introduction of new concepts and
new techniques. Compared to most other phyla, phylogenetic relationships among sponges …

Background The Astrophorida (Porifera, Demospongiae p) is geographically and
bathymetrically widely distributed. Systema Porifera currently includes five families in this …

Sponges (phylum Porifera) are a large and ancient group of morphologically simple but
ecologically important aquatic animals. Although their body plan and lifestyle are relatively …

Calcareous sponges (Phylum Porifera, Class Calcarea) are known to be taxonomically
difficult. Previous molecular studies have revealed many discrepancies between classically …

Marine sponges are known to harbor a diverse and complex microbiota; however, a vast
majority of surveys have been investigating the prokaryotic communities in the north …

The two main scientific tasks of taxonomy are species' delineation and classification. These
two tasks are often treated differently, with classification accomplished by newly-developed …

Calcareous sponges are taxonomically difficult, and their morpho-systematic classification
often conflicts with molecular phylogenies. Consequently, species descriptions that rely …

Most biological groups are still longing for a phylogenetically sound taxonomic organization.
In this article, we aimed to verify the consistency of morphological characters in calcarean …

Understanding of evolution and systematics of Calcarea (Porifera) have not yet met a
corresponding increase in the knowledge of diversity and distribution of these sponges in …