|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Asteroidea - Paxillosida - Astropectinidae
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.
|H. Hess 1955||Arm constricted at their base. Abactinal plates of the disc tight, hexagonal and covered with granules. Superomarginal plates covered with dense granules, most plates also bearing a short conical spine on a crater-shape tubercle. Inferomarginal row parallel to that of the superomarginal plates.|