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Checklist for Order Chasmataspidida Caster & Brooks, 1956 (Chasmataspids)
and region Paleozoic (Phanerozoic)


Class
 		Merostomata
Woodward, 1866
Horseshoe crabs, Merostomates		26
87
277		Families
Genera
Species		 
Taxom
 

Order
 		Chasmataspidida ♰
Caster & Brooks, 1956
Chasmataspids

Families
Genera
Species		 
Taxom