|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Asteroidea - Valvatida - Ophidiasteridae
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. K. Spencer and C.W. Wright 1966||Disk small. Arms long and slender arms, wider at base. Rounded arm tip. Marginals alternate in two prominent rows. Superomarginal plates generally with a large tubercle. Aboral surface flat but with median row formed by swollen intersection of long abactinal plates, most with a short rounded spine. Ornament of dense granules. Large papular area. Adambulacrals with one subambulacral spine.|