|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Cephalaspidea - Cylichnidae
It was reranked as Tornatina (Cylichnella) by Dall (1896); it was reranked as Acteocina (Cylichnella) by Maury (1917).
It was assigned to Tornatina by Dall (1896); to Acteocina by Maury (1917); to Gastropoda by Mansfield (1925); to Acteocinidae by Woodring (1928) and Olsson and Harbison (1953); to Cephalaspida by Sepkoski (2002); and to Cylichnidae by Todd (2001) and Harzhauser (2007).
|Year||Name and author|
|1896||Tornatina (Cylichnella) Dall p. 27|
|1917||Acteocina (Cylichnella) Maury p. 14|
|1925||Cylichnella Mansfield p. 9|
|1928||Cylichnella Woodring p. 124|
|1953||Cylichnella Olsson and Harbison p. 161|
|2002||Cylichnella Sepkoski, Jr.|
|2007||Cylichnella Harzhauser p. 112|
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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.