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Taxon:
Order †
Helcionellida
Geyer, 1994
(mollusc)
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Entity:
[†Helcionelloida] (Class)
..[†Pelagiellida] (Order)
..[†Helcionellida] (Order)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Mollusca
-
(Class)
Helcionelloida
Current position
†
Helcionelloida
(Class)
Peel, 1991
Ref:
Wrona, 2003: 203
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Last updated:
1 Feb 2024