|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Trilobita - Proetida - Aulacopleuridae
It was reranked as Otarion (Aulacopleura) by Thomas and Owens (1978).
It was assigned to Otarion by Thomas and Owens (1978); to Proetida by Sepkoski (2002); and to Aulacopleuridae by Jell and Adrain (2003).
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.