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Checklist for Order
Chasmataspidida
Caster & Brooks, 1956
(Chasmataspids)
and region
Utah
(West USA, USA)
Class
Merostomata
Woodward, 1866
Horseshoe crabs, Merostomates
Families
Genera
Species
Taxom
Order
Chasmataspidida
♰
Caster & Brooks, 1956
Chasmataspids
Families
Genera
Species
Taxom
