-
Demosponges (
Demospongiae) are the most
diverse class in the
phylum Porifera. They
include greater than 90% of all
species of
sponges with
nearly 8,800...
- and
demosponges (
Demospongiae). However,
studies have now
shown that the Homoscleromorpha, a
group thought to
belong to the
Demospongiae, has a genetic...
- et al. (5
February 2009). "Fossil
steroids record the
appearance of
Demospongiae during the
Cryogenian period". Nature. 457 (7230): 718–721. Bibcode:2009Natur...
-
three dimensional shapes.
Among the four sub-clades of Porifera,
three (
Demospongiae, Hexactinellida, and Homoscleromorpha)
produce skeletons of amorphous...
- The Cañadón
Asfalto Formation is a
geological formation which dates to the
Toarcian age of the
Early Jur****ic
period of Argentina. The
rocks of the formation...
- van Soest;
Klaus Rützler (1998). "A
Revision of
Axinellidae (Porifera:
Demospongiae) in the
Central West
Atlantic Region".
Smithsonian Contributions to Zoology...
-
larval development and
release in
Spongia officinalis L.(Porifera,
Demospongiae) from the
Apulian coast."
Marine Biology 152.4 (2007): 969-979. Baldacconi...
-
sponges form a
major group of the
phylum Porifera,
consisting of
classes Demospongiae and Hexactinellida. They are
characterized by ****ules made out of silicon...
- "The
unique skeleton of
siliceous sponges (Porifera;
Hexactinellida and
Demospongiae) that
evolved first from the
Urmetazoa during the Proterozoic: a review"...
- (September 19, 2019). "Two new
Clathria (Axosuberites) Topsent, 1893 (
Demospongiae: Poecilosclerida) from
Northeastern Brazil". Zootaxa. 4671 (4): 500–510...
