|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Asteroidea - Platyasterida - Urasterellidae
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.
|P. A. Jell and J. N. Theron 1999||Dorsal surface with very open meshwork of ossicles in radial columns, columns symmetrical about arm axis. 1st. ambulacrals large, elongate, reaching interradial margin or close to it, in closely adjacent pairs across interadii|