|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Asteroidea - Valvatida - Goniasteridae
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.
|J. Roman and A. Strougo 1987||Goniasteridae with rather long, acute arms. Well-defined, large madreporite. Five primary interradial abactinals differentiated bearing tubercles. Large interradial abactinals organized in to rows, encircling the primary interradial. Other abactinals polygonal, tessellated. Carinal row differentiated in the arm with few lateral abactinals. Marginals wide in the disc tend to be longer, quadrate in the arm. Superomarginals granular. Inferomarginals with a single robust spine. Adambulacrals with one or two subambulacral spines.|