|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
It was reranked as the unranked clade Mollusca by Edgecombe et al. (2011).
It was assigned to Eutrochozoa by Zrzavy et al. (1998); to Metazoa by Shoshani et al. (1989) and Sepkoski (2002); to Trochozoa by Edgecombe et al. (2011); and to Schizocoela by Nielsen (2012).
|Year||Name and author|
|1846||Chiton cottae Geinitz p. 389 figs. pl. 5, figs. 13-14|
|1861||Chiton cottai Geinitz p. 55|
|1989||Mollusca Shoshani et al. p. 435|
|1998||Mollusca Zrzavy et al.|
|2002||Mollusca Sepkoski, Jr.|
|2011||Mollusca Edgecombe et al. p. 153 figs. Fig. 1|
|2012||Mollusca Nielsen p. 140 figs. Fig. 23.1|
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