|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Asteroidea - Valvatida - Goniasteridae
It was assigned to Goniasteridae by Spencer (1913), Spencer and Wright (1966) and Blake and Reid (1998); and to Valvatida by Sepkoski (2002).
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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.
|W.S. Adkins 1928 (Austinaster)||Outline stellate-pentagonal, interradial arc moderatelly deep. Form depressed, disk thin over center, thickened at marginalia. Infero- and superomarginalia set at angle to each other, the inferior ones projecting, reducing gradually in size toward tip of ray. Both marginalia tuberculate tubercules of medium size and somewhat irregularly distributed. Marginalia devoid of ridge, grooves or other irregularities, and margins not depressed. Actinal interradial plates triangular, large. Abactinal plates small, hexagonal.|