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Taxon:
Subphylum
Acraniata
Bleeker, 1859
(invertebrate)
Taxa
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Hierarchy
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Entity:
Chordata (Phylum) - chordates
..[Acrania] (Subphylum)
..[Agnatha] (Subphylum)
..[†Arthrodira] (Class) - arthrodires
..[†Calcichordata] (Subphylum)
..Cephalochordata (Subphylum) - lancelets
..[Cephalochordata] - cephalochordates
..[†Conodonta] (Subphylum)
..Conodontophorida (Subphylum)
..[Craniata] (Subphylum)
..[Craniota]
..[Gnathostomata] (Subphylum)
..[Hemichordata] (Subphylum)
..[Marsipobranchii] (Class)
..[Myxini] (Subphylum)
..[Olfactores] ([unranked])
..[†Ostracophori] (Class)
..†Pikaia (Genus)
..[Pisces] (Class)
..[Tunicata] (Subphylum) - tunicates
..[Tunicata] (Class)
..Urochordata (Subphylum) - tunicates
..Vertebrata (Subphylum) - vertebrates
..[Acraniata] (Subphylum)
....[Cephalochordata] (Infraphylum)
....[†Conodonta] (Infraphylum)
Concise hierarchy
(Kingdom)
Animalia
-
(Phylum)
Chordata
Phylogeny
Questionably Paraphyletic/Ancestral (para)
Ref:
T. Cavalier-Smith, 1998
: 237.
Original entries
†
Conodonta
(Infraphylum)
Eichenberg, 1930
Current position
Chordata
(Phylum)
Bateson, 1885
Ref:
T. Cavalier-Smith, 1998
: 237.
Historical positions
Chordata
(Phylum)
Bateson, 1885
Ref:
T. Cavalier-Smith, 1998
: table 4 (p. 237).
Number of Subtaxa
1989-present
Systema Naturae 2000
[2ip]
1998
T. Cavalier-Smith
[2ip]
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Last updated:
1 Feb 2024