|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Echinoidea - Salenioida
It was corrected as Salenioida by Fell and Pawson (1966), Linder et al. (1988), Sepkoski (2002) and Kroh and Smith (2010).
It was assigned to Echinacea by Fell and Pawson (1966); to Echinoidea by Linder et al. (1988) and Sepkoski (2002); and to Calycina by Kroh and Smith (2010).