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Taxon:
Class
Merostomata
Dana, 1852
- horseshoe crabs
(arthropod)
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Hierarchy
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Entity:
[Chelicerata] (Superclass)
..[†Aglaspidida] (Epiclass)
..[†Aglaspidida] (Class)
..[†Chasmataspida] (Class)
..[Euchelicerata] (Epiclass)
..[†Eurypteridea] (Class)
..[†Merostomoidea] (Class)
..[Pycnogonida] (Epiclass) - sea spiders
..[Merostomata] (Class) - horseshoe crabs
....[†Aglaspida] (Order)
....[†Chasmataspida] (Order)
....†Eolimulus (Genus)
....[†Eurypterida] (Subclass)
....†Gdowia (Genus)
....[†Gigantostraca] (Order)
....[†Sanctacarus] (Genus)
....[Xiphosura] (Order)
....[Xiphosura] (Subclass)
Variants
Different rank
:
Merostomata
(Subclass)
Dana, 1852
Synonyms
Accepted name
:
Xiphosura
(Class)
Latreille, 1802
Ref:
J.C. Lamsdell, 2013
: 19.
[implicit]
In
:
Chelicerata
(Superclass)
Heymons, 1901
Vernacular Names (English)
Full name
:
horseshoe crabs
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Last updated:
28 Aug 2026