-
several different names,
including coenecium (for
living pterobranchs),
rhabdosome (for
fossil graptolites), and most
commonly tubarium (for both). The individual...
-
Dendroidea that is
characterized by its
unique branching pattern and
conical rhabdosomes.
Dictyonema Hemichordata Graptolithina A
graptolite of the
order Dendroidea...
-
fruticosus graptolites from the
Bendigonian Australian Stage (Lower Ordovician) near Bendigo, Victoria, Australia. Two overlapping, three-stiped
rhabdosomes....
- biostratigraphy. The
general outline of each
Tetragraptus approximatus colony (
rhabdosome) is
highly distinctive. It
resembles a long
narrow letter H or X. The...
-
characterized by a conical, net-like structure. The
colonies (known as
rhabdosomes) are
branched and may vary from
almost discoidal to
almost cylindrical...
-
originally defined as
rhabdosomes, as
these were also
described as
being grouped linearly in rows on the
dorsal side of the cell and
rhabdosomes have not been...
- lobate, and
spinose thecal apertures,
sicular cladia, and S-shaped
rhabdosomes, have been do****ented to have
evolved among graptolites during the adaptive...
- more planktonic, the
large cingular and
sulcal lists evolved alongside.
Rhabdosomes, rod-shaped
bodies found in the
cytoplasm (approximately 3 μm in length...
