|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Somasteroidea - Chinianasteridae
It was assigned to Goniactinida by Sepkoski (2002); to Somasteroidea by Blake (2013); and to Chinianasteridae by Blake and Guensburg (1993), Dean Shackleton (2005) and Blake and Guensburg (2015).
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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.
|D. B. Blake and T. E. Guensburg 1993||Chinianasterid? with asteroid-like shape, including enlarged disk, arm tapering (not petaloid); ambulacral nearly paired proximally, becoming offset medially, distally; podial basins solid, without pores or abradial notching; first virgals not differentiated from remainder, interbrachially, 3 or 4 virgals in each row decreasing to non medially or distally on arm; marginals frame well developped, imbricated,with stout, L-shaped, medial interbrachial marginal pairs.|
|J. Dean Shackleton 2005||Metataxon|