|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Heterodontiformes (bullhead shark)
Chondrichthyes - Heterodontiformes
It was reranked as the suborder Heterodontiformes by Cassier (1966).
It was assigned to Euselachii by Cassier (1966); to Selachii by Applegate (1970); to Chondrichthyes by Sepkoski (2002); to Galeomorphii by Thies (1983) and Delsate (2003); to Galea by Underwood and Ward (2004); to Neoselachii by Kriwet (2008); to Galeomorphii by Biddle (1993) and Kriwet et al. (2009); and to Galeomorphi by Long (2011).
|Year||Name and author|
|1966||Heterodontiformes Cassier p. 51|
|1970||Heterodontiformes Applegate p. 393|
|1983||Heterodontiformes Thies p. 28|
|1993||Heterodontiformes Biddle p. 201|
|2002||Heterodontiformes Sepkoski, Jr.|
|2003||Heterodontiformes Delsate p. 8|
|2004||Heterodontiformes Underwood and Ward p. 460|
|2008||Heterodontiformes Kriwet p. 236|
|2009||Heterodontiformes Kriwet et al. p. 320|
|2011||Heterodontiformes Long p. 242|
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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.