|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Ophiuroidea - Oegophiurida - Protasteridae
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||Arms slender, tapering gently throughout. Disc subrounded to subpentagular, inflated dorsally; dorsal surface of thin plates covered by a finely tuberculate integument, without spines. Short spines in a central marginal triangle on ventral interradii. Ambulacrals boot-shaped, with leg and foot of about the same lengh. Adambulacrals with row of spatulate spines along ventral edge and 1-2 vertical spines. Madreporite circular with marginal aperture around half circumference.|