Echinacea (animal)

Echinacea Temporal range: Lower Jurassic–recent PreЄ Є O S D C P T J K Pg N
Echinus melo
Scientific classification
Kingdom:	Animalia
Phylum:	Echinodermata
Class:	Echinoidea
Superorder:	Echinacea
Orders
(See Text)

The Echinacea are a superorder of sea urchins. They are distinguished by the presence of a rigid test, with ten buccal plates around the mouth, and solid spines. Unlike some other sea urchins, they also possess gills. The group is a large one, with species found worldwide.

Echinacea are part of Animalia (Kingdom), Echinodermata (Phylum), Echinozoa (Subphylum), Echinoidea (Class), Euechinoidea (Subclass), Carinacea (Infraclass).

Child taxa

According to World Register of Marine Species:

• Order Arbacioida (Gregory, 1900) -- 1 family and 2 fossiles
• Order Camarodonta (Jackson, 1912)
  • Infra-order Echinidea (Kroh & Smith, 2010) -- 5 families
  • Infra-order Temnopleuridea (Kroh & Smith, 2010) -- 2 families and 2 fossiles
• Order Stomopneustoida (Kroh & Smith, 2010) -- 2 families and 1 fossile
• Family Glyphopneustidae Smith & Wright, 1993 †

• Arbacia lixula (oursin noir).JPG

  Arbacia lixula,
  an Arbacioida
• 

  Paracentrotus lividus,
  an Echinidea
• Black sea urchin (Temnopleurus toreumaticus).jpg

  Temnopleurus toreumaticus,
  a Temnopleuridea
• S. variolaris.jpg

  Stomopneustes variolaris,
  a Stomopneustoida