Trilobita - Proetida - Aulacopleuridae

Synonyms: Conoparia Hawle and Corda 1847, Otarionella Weyber 1965

Parent taxon: Aulacopleuridae according to P.A. Jell and J.M. Adrain 2003

Sister taxa: Aulacopleura, Coignouina, Cyphaspides, Dixiphopyge, Goodsiraspis, Harpidella, Maurotarion, Namuropyge, Otarioninae, Songkania

Subtaxa: Otarion spinicaudatum

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Ecology: fast-moving low-level epifaunal deposit feeder