|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Asteroidea (sea star)
It was reranked as the subclass Asteroidea by Schuchert (1915), Owen (1965) and Spencer and Wright (1966).
It was assigned to Stelleroidea by Schuchert (1915) and Spencer and Wright (1966); to Echinodermata by Barnes (1998) and Sepkoski (2002); and to Asterozoa by von Zittel (1895), Owen (1965), Blake (1989), Dean Shackleton (2005) and Blake (2013).
|Year||Name and author|
|1830||Asteroidea de Blainville|
|1895||Asteroidea von Zittel|
|1915||Asteroidea Schuchert p. 51|
|1965||Asteroidea Owen p. 559|
|1966||Asteroidea Spencer and Wright p. U42|
|1989||Asteroidea Blake p. 213|
|1998||Asteroidea Barnes p. 309|
|2002||Asteroidea Sepkoski, Jr.|
|2005||Asteroidea Dean Shackleton p. 91|
|2013||Asteroidea Blake p. 355|
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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.
|J. Dean Shackleton 2005||Ambulacrals in direct opposition; adambularals positioned orally to ambulacrals; adambulacrals blocky; longitudinally adjacent adambulacral abut; inferomarginal spines present; madreporite dorsal to inferomarginals; aboral plating arranged in regular lngitudinal rows; aboral plates tall blocky (carinals); aboral plate spines; body shape stellate; mouth angle plates L-shaped.|