|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Crinoidea - Homocrinida
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.
|W. I. Ausich 1998||Disparids with aboral cup composed primi- tively of five lintels, five infrabasals, and three radials (B, C, and E rays), derived forms may lose radials; plate circlets symmetrical about oral-aboral axis; aboral cup cone or bowl shaped, radial facets primitively plenary, and free arms branch.|