|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Chondrichthyes - Petalodontiformes - Petalodontidae
It was assigned to Janassidae by Jordan (1963); to Petalodontida by Zangerl (1981); to Chondrichthyes by Sepkoski (2002); and to Petalodontidae by Hay (1902) and Ginter et al. (2010).
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.