Superorder

Luminacea (Sand dollars and sea biscuits)

Dendraster excentricus. Photo: no rights reserved

iNaturalist • Wikipedia

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Humboldt Life
- Kingdom: Animalia (Animals)
  - Phylum: Echinodermata (Echinoderms)
    - Subphylum: Echinozoa (Sea urchins and sea cucumbers)
      - Class: Echinoidea (Sea urchins, sand dollars, and heart urchins)
        Subclass: Euechinoidea (Sea urchins)
        Infraclass: Irregularia (Irregular sea urchins)
        Subterclass: Neognathostomata
        Superorder: Luminacea (Sand dollars and sea biscuits)
        Order: Echinolampadacea (Sand dollars) (1)

Subtaxa

Order: Echinolampadacea (Sand dollars)

Where in Humboldt

Discussion

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