|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Echinoidea - Cidaroida - Histocidaridae
It was reranked as the subfamily Histocidarinae by Fell (1966) and Grawe-Baumeister et al. (2000); it was reranked as the family Histocidaridae by Smith (2009) and Kroh and Smith (2010).
It was assigned to Stereocidarinae by Mortensen (1928); to Cidaridae by Fell (1966); to Rhabdocidaridae by Grawe-Baumeister et al. (2000); to Cidaroida by Smith (2009); and to Histocidaridea by Kroh and Smith (2010).
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.