Holectypoida (order)

is a biological order of the phylum Echinodermata (Echinoderms) and class Echinoidea (Heart Urchins).

Classification

Families in the Order of Holectypoida

Echinoneidae (family)

Orders in the Class of Echinoidea

Arbacioida (order) -
Arbacioida (order)
Cassiduloida (order) -
Cassiduloida (order)
Diadematoida (order) -
Diadematoida (order)
Echinoida (order) -
Echinoida (order)
Echinothurioida (order) -
Echinothurioida (order)
Heart Urchins (order) -
Heart Urchins (order)

Spatangoida

Holectypoida (order) -
Holectypoida (order)
Pedinoida (order) -
Pedinoida (order)
Pencil Urchins (order) -
Pencil Urchins (order)

Cidaroida

Phymosomatoida (order) -
Phymosomatoida (order)
Salenioida (order) -
Salenioida (order)
Sand Dollars (order) -
Sand Dollars (order)

Clypeasteroida

Temnopleuroida (order) -
Temnopleuroida (order)

External Links

Holectypoida – Wikipedia
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