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Cystoidea is a
class of
extinct crinozoan echinoderms,
termed cystoids, that
lived attached to the sea
floor by stalks. They
existed during the Paleozoic...
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Ctenocystoidea †
Robison & Sprinkle, 1969
Crinozoa Crinoidea Edrioasteroidea †
Cystoidea †
Rhombifera †
Asterozoa Ophiuroidea Asteroidea Echinozoa Echinoidea Holothuroidea...
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Haeckel Cystoidea...
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contained within Crinozoa include Crinoidea and the
extinct Paracrinoidea (
Cystoidea, Edrioasteroidea, and Rhombifera).
Since the Paleozoic, sea lilies, or...
- †Comarocystitida
order †Platycystitida †
Cystoidea (
Cystoidea/Hydrophoridea) -
today considered a
paraphyletic taxon;
rarely also
Cystoidea s.l. also
consists of Eocrinoidea...
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propel itself along the sea floor.
Prehistoric echinoderms Blastozoa Cystoidea Paleozoic echinoderms Imran Rahman (January–February 2009). "Making sense...
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Argentina at Fossilworks.org F. G. Acenolaza. 1986. El
genero Macrocystella (
Cystoidea) en el
Tremadociano de
Salta y Jujuy.
Actas del IV
congreso Argentino...
- Jaekel, Otto. 1899.
Stammesgeschichte der Pelmatozoen:
Thecoidea und
Cystoidea. Berlin:
Julius Springer. Jaekel, Otto. 1902. “Ueber
verschiedene Wege...
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Calyptaulax sp.
Tretaspis sp. Crinoidea:
Cupulocorona rugosa Donovan and Paul
Cystoidea Regulaecystis inconstans Paul
Cynwyd Forest Quarry -
photo taken July...
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Echinosphaerites is a
genus of
rhombiferan cystoid echinoderms that
lived in the
Early to
Middle Ordovician of
North America and
Europe (Bockelie, 1981)...
