|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Ophiuroidea - Ophiurida - Ophiurinidae
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.
|R. W. Morris et al. 1973||Small ophiuroids with long thin, apparently non-spinose, arms, but with definite paired spines on distinct ridges near arm bases; lateral arm shields wrapped around arm and joining at mid-line on oral side, triangular oral arm plates reduced and not developed in distal portion of the arm; marginals absent around small central disc; jaw plates rounded triangular in shape and undivided.|