|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Ophiuroidea - Oegophiurida - Protasteridae
It was reranked as Drepanaster by Spencer (1934), Owen (1965), Spencer and Wright (1966), Kesling (1970), Hotchkiss (1993), Sepkoski (2002) and Dean Shackleton (2005).
It was assigned to Protaster by Whidborne (1898); to Oegophiurida by Sepkoski (2002); and to Protasteridae by Spencer (1934), Owen (1965), Spencer and Wright (1966), Kesling (1970), Hotchkiss (1993) and Dean Shackleton (2005).
|Year||Name and author|
|1898||Protaster (Drepanaster) Whidborne p. 208|
|1934||Drepanaster Spencer pp. 492-493|
|1965||Drepanaster Owen p. 550|
|1966||Drepanaster Spencer and Wright p. U87|
|1970||Drepanaster Kesling p. 74|
|1993||Drepanaster Hotchkiss p. 64|
|2002||Drepanaster Sepkoski, Jr.|
|2005||Drepanaster Dean Shackleton p. 91|
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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.