dcsimg
Image of Warty Sand Urchin
Biota » » Animals » » Echinoderms

Sea Urchins And Sea Cucumbers

Echinozoa

2009 Moorea Biocode   cc-by-nc-sa-3.0

Echinozoa is a subphylum of echinoderms. There are 5262 species of Echinozoa, in 987 genera and 171 families. This subphylum has been around since the middle ordovician epoch. It includes groups like Holothuroidea and Echinoidea.

EOL has data for 11 attributes, including: