- surface,
surrounding the
mouth and
extending into a
number of
narrow arms.
Eocrinoids were a
paraphyletic group that are seen as the
basal stock from which...
- some
Eocrinoids†...
-
Cambrian Eocrinoids from
Western North America".
Journal of Paleontology. 39 (3): 355–364. JSTOR 1301709. Durham, J. (1978). "A
Lower Cambrian Eocrinoid". Journal...
- Canada. It is
related to Gogia. Sprinkle, J.; Collins, D. (2006). "New
eocrinoids from the
Burgess Shale,
southern British Columbia, Canada, and the Spence...
- organisms. The trilobite,
inarticulate brachiopod, archaeocyathid, and
eocrinoid faunas of the
Cambrian were
succeeded by
those that
dominated the rest...
- group,
quite where within the stem
group to draw the
distinction between eocrinoids and
crinoids is a
somewhat arbitrary decision. Philip, G. M.; Strimple...
-
viewpoint holds that
crinoids evolved from
within the
blastozoans (the
eocrinoids and
their derived descendants, the
blastoids and the cystoids), whereas...
-
Ubaghsicystis is a
genus of
eocrinoid known from the mid Cambrian. Gil Cid, María Dolores; Domínguez Alonso,
Patricio (December 2002). "Ubaghsicystis...
-
Lower Cambrian Eocrinoid".
Journal of Paleontology. 52 (1): 195–199. JSTOR 1303808. Robison, R. A. (1965). "Middle
Cambrian Eocrinoids from
Western North...
- blastoids);
while the
posterior structure (similar to that of the
cystoids and
eocrinoids)
fulfilled the
functions of **** and gonopore. Furthermore, and unlike...
