|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Chondrichthyes - Symmoriiformes - Symmoriidae
It was assigned to Cladodontidae by Jordan (1963); to Symmoriida by Sepkoski (2002); and to Symmoriidae by Zangerl (1981), Williams (1985), Goto et al. (1988), Ivanov (1999) and Ginter et al. (2010).
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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.