|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Cidaroida (pencil urchin)
Echinoidea - Cidaroida
It was corrected as Cidaroida by Durham and Melville (1957), Fell (1966), Smith (1991), Donovan (1993), Smith (1995), Boczarowski (2001), Sepkoski (2002), Donovan et al. (2005), Smith (2009), Webster et al. (2009), Kroh and Smith (2010) and Smith (2015).
It was assigned to Echinoidea by Durham and Melville (1957), Donovan (1993) and Sepkoski (2002); to Perischoechinoidea by Fell (1966), Boczarowski (2001) and Webster et al. (2009); to Cidaroidea by Smith (1991), Donovan et al. (2005), Smith (2009) and Kroh and Smith (2010); and to Cidaroidea by Smith (1995) and Smith (2015).
|Year||Name and author|
|1957||Cidaroida Durham and Melville p. 251|
|1966||Cidaroida Fell p. U317|
|1991||Cidaroida Smith p. 15|
|1993||Cidaroida Donovan p. 94|
|1995||Cidaroida Smith p. 123|
|2001||Cidaroida Boczarowski p. 94|
|2002||Cidaroida Sepkoski, Jr.|
|2005||Cidaroida Donovan et al. p. 102|
|2009||Cidaroida Webster et al. p. 248|
|2010||Cidaroida Kroh and Smith p. 169|
|2015||Cidaroida Smith p. 4|
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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.