- lamps****), hyoliths, bryozoans, graptolites,
pentaradial echinoderms (e.g.
blastozoans,
crinozoans and eleutherozoans), and
numerous other animals. Anomalocarids...
- the
traditional viewpoint holds that
crinoids evolved from
within the
blastozoans (the
eocrinoids and
their derived descendants, the
blastoids and the...
- the Zaouïa Formation. Sprinkle, J. (1973). "Morphology and
evolution of
blastozoan echinoderms".
Harvard Special Publication:
Museum of
Comparative Zoology...
- X.; Huang, D.-Y. (2024). "Cheirocystis liexiensis, a new
rhombiferan blastozoan (Echinodermata) from
Lower Ordovician of
South China Block". Palaeoworld...
- 1% of the community. As a whole, the
Eocrinoids are
regarded as
basal blastozoans very
close to the
ancestry of the
entire subphylum. Harker, P.; Hutchinson...
-
extinct class of
blastozoan echinoderms. They
lived in
shallow seas
during the
Early Ordovician through the
Early Silurian.
While blastozoans are
usually characterized...
- stem-group echinoderms. They have also been
interpreted as
aberrant blastozoans and as stem-group hemichordates. The
presence of
stereom plates indicates...
-
carpoid echinoderms, is contentious. They have been
hypothesized to be
blastozoans, stem-group hemichordates, and stem-group echinoderms.
Phylogenetic analyses...
- Rhombifera.
Echinosphaerites had a
skeletal meshwork like many
other blastozoan echinoderms, with a fine
outer mesh
layer and an
inner co**** mesh layer...
- Lefebvre; E. Nardin; A. Nedjari, and C.R.C. Paul. 2017. The
diploporite blastozoan Lepidocalix pulcher from the
Middle Ordovician of
northern Algeria: Taxonomic...
