[nom. corr. Kamptosominae]
Recent; Pacific (abyssal).
|Classification and/or Status||Euechinoidea, Echinothurioida|
The crenulate primary tubercles and presence of large buccal plates bearing tube-feet are both characters that are also found in Diadematoids. However, unlike diadematoids there are a small number of wedge-shaped ambulacral plates incorporated into the peristomial membrane around its edge. Kamptosomatidae appear to bridge the gap between Diadematoida and other Echinothurioida. It is sister group to all other echinothurioids in thge analysis of Kroh & Smith (2010).