Subclass

Euechinoidea (Sea urchins)

Mesocentrotus franciscanus. Photo: (c) juliabohemian, some rights reserved (CC BY-NC)

iNaturalist • Wikipedia

The subclass Euechinoidea includes almost all living species of sea urchin, and fossil forms going back as far as the Triassic.

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: Carinacea (3)
        Infraclass: Irregularia (Irregular sea urchins) (1)

Subtaxa

Infraclass: Carinacea

Infraclass: Irregularia (Irregular sea urchins)

Where in Humboldt

Discussion

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