- echinoderms, and were the most
common echinoderms during the Cambrian.
Eocrinoids were a
paraphyletic group that may have been
ancestral to six
other classes:...
- 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...
- blastoids);
while the
posterior structure (similar to that of the
cystoids and
eocrinoids)
fulfilled the
functions of **** and gonopore. Furthermore, and unlike...
-
Eocrinoid holdfasts on an
Ordovician hardground in Utah...
- echinoderms,
algae and vetulicolians.
There are also the earliest-known
eocrinoids,
unidentified soft-bodied
animals and
abundant trace fossils. The Guanshan...
- 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...
-
Walcott Quarry Trilobite Beds This
echinoderm was a
primitive member of the
eocrinoid group (which
despite the name weren't
closely related to crinoids). This...
