-
Cystoidea was
defined as a
class of
extinct paleozoic blastozoan echinoderms established to encomp****
stalked taxa that were
neither crinoids nor blastoids...
- and Ridersia)
grouped with "derived
Blastozoans" as
their relationships with each
other and with
other blastozoans are not addressed. Note that some other...
- the Zaouïa Formation. Sprinkle, J. (1973). "Morphology and
evolution of
blastozoan echinoderms".
Harvard Special Publication:
Museum of
Comparative Zoology...
- lamps****), hyoliths, bryozoans, graptolites,
pentaradial echinoderms (e.g.
blastozoans,
crinozoans and eleutherozoans), and
numerous other animals. Anomalocarids...
-
extinct class of
blastozoan echinoderms. They
lived in
shallow seas
during the
Early Ordovician through the
Early Silurian.
While blastozoans are
usually characterized...
- PMID 21528703. Sprinkle,
James (1973). "Morphology and
evolution of
blastozoan echinoderms".
Special Publication of the
Museum of
Comparative Zoology...
- Rhombifera.
Echinosphaerites had a
skeletal meshwork like many
other blastozoan echinoderms, with a fine
outer mesh
layer and an
inner co**** mesh layer...
-
Gogia is a
genus of
primitive eocrinoid blastozoan from the
early to
middle Cambrian. G.
ojenai dates to the late
Early Cambrian;
other species come from...
-
Diploporita is an
extinct group of
blastozoans that
ranged from the
Ordovician to the Devonian.
These echinoderms are
identified by a
specialized respiratory...
- the
traditional viewpoint holds that
crinoids evolved from
within the
blastozoans (the
eocrinoids and
their derived descendants, the
blastoids and the...
