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Atlas
All Species
Geology
Echinodermata
Echinoidea
Cassiduloida
Cassidulidae
Cassidulus
Cassidulus
Phylum:
Echinodermata
Class:
Echinoidea
Order:
Cassiduloida
Family:
Cassidulidae
Genus:
Cassidulus
Cassidulus
Species present in the Cretaceous of the Western Interior Seaway
Cassidulus subquadratus
