-
Hexactinellida,
Heteractinida & Calcarea, ****i + 872 p., 506 fig., 1 table, 2004,
available here. ISBN 0-8137-3131-3.
Media related to
Hexactinellida...
- into
classes mainly according to the
composition of
their skeletons:
Hexactinellida (gl**** sponges) have
silicate ****ules, the
largest of
which have six...
-
Turbellaria (e.g. Dugesia)
Calcarea (calcareous sponges)
Demospongiae Hexactinellida (gl**** sponges)
Homoscleromorpha Halicryptomorpha Priapulimorpha Seticoronaria...
- et al. (2007). "The
unique skeleton of
siliceous sponges (Porifera;
Hexactinellida and Demospongiae) that
evolved first from the
Urmetazoa during the Proterozoic:...
- sea-sponges. He was
especially interested in a
class of
sponges known as
Hexactinellida, of
which he
studied from
collections taken from the U.S. "Albatross...
- shapes.
Among the four sub-clades of Porifera,
three (Demospongiae,
Hexactinellida, and Homoscleromorpha)
produce skeletons of
amorphous silica and one...
-
mapping of
community structure in
three gl****
sponge reefs (Porifera,
Hexactinellida)".
Marine Ecology Progress Series. 417: 97–113. doi:10.3354/meps08794...
-
group of the
phylum Porifera,
consisting of
classes Demospongiae and
Hexactinellida. They are
characterized by ****ules made out of
silicon dioxide, unlike...
-
Paleontology Part E, Revised. Porifera,
Volume 3:
classes Demospongea,
Hexactinellida,
Heteractinida & Calcarea, ****i + 872 p., 506 fig., 1 table, 2004, available...
- (2007-05-03). "The
unique skeleton of
siliceous sponges (Porifera;
Hexactinellida and Demospongiae) that
evolved first from the
Urmetazoa during the Proterozoic:...
