|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Echinoidea - Spatangoida - Schizasteridae
It was reranked as Pericosmus (Lambertona) by Fischer (1966).
It was assigned to Pericosmus by Fischer (1966); to Schizasteridae by Henderson (1975); and to Spatangoida by Sepkoski (2002).
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.