|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Asteroidea - Valvatida - Goniasteridae
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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. W. Rasmussen 1950||A Ceramaster with a pentagonal outline, and nearly straight sides. The margin is formed of just as many superomarginals as inferomarginals. The marginals are provided with a depressed border bearing line, closely placed setae, and within this, scattered setae attached in spine-pits. In the outermost part of the arm, the superomarginals meet in the mid line. This produces an ossicle which seen from the abactinal side has a characteristic pentagonal outline.|