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Taxon:
Order †
Nucleocrinida
(echinoderm)
Taxa
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Hierarchy
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Entity:
†Blastoidea (Class)
..†Deltablastus (Genus)
..†Drophocrinus (Genus)
..†Fissiculata (Order)
..†Heteroschisma (Genus)
..†Lophoblastus (Genus)
..†Pentremites (Genus)
..†Placoblastus (Genus)
..†Schizoblastus (Genus)
..†Spiraculata (Order)
..†Timoroblastus (Genus)
..†Nucleocrinida (Order)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Echinodermata
-
(Class)
Blastoidea
Current position
†
Blastoidea
(Class)
Say, 1825
Number of Subtaxa
1989-present
Systema Naturae 2000
†[3]g
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Last updated:
1 Feb 2024