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Taxon:
Order †
Orthothecida
Marek, 1966
(invertebrate)
Taxa
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Hierarchy
Nomenclature
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Entity:
†Hyolitha (Class)
..†Haplophrentis (Genus)
..†Hyolithida (Order)
..†Orthothecida (Order)
....†Bactrotheca (Genus)
....†Circothecidae (Family)
....†Nephrotheca (Genus)
....†Orthotheca (Genus)
....†Quadrotheca (Genus)
....†Tcharatheca (Genus)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Mollusca
-
(Class)
Hyolitha
Current position
†
Hyolitha
(Class)
Marek, 1963
Ref:
Wrona, 2003: 191
Alternative positions
†
Hyolitha
(Phylum)
(Marek, 1963)
Ref:
R.S. Boardman et al., 1987
†
Orthothecimorpha
(Class)
Ref:
J.J. Sepkoski Jr., 2002
: 75.
Historical positions
†
Orthothecimorpha
(Class)
Ref:
J.J. Sepkoski Jr., 2002
: 75.
†
Hyolitha
(Phylum)
(Marek, 1963)
Ref:
R.S. Boardman et al., 1987
Number of Subtaxa
2024
Available in Systema Naturae 2000
†1f;6g
1989-present
Systema Naturae 2000
†>15g
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Last updated:
1 Feb 2024