|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
It was reranked as the unranked clade Vertebrata by Haeckel (1866), Donoghue and Smith (2001) and Nielsen (2012).
It was assigned to Animalia by Haeckel (1866); to Chordata by Nielsen (2012); to Chordata by Shoshani et al. (1989), Zrzavy et al. (1998), Dineley and Metcalf (1999), Shu et al. (1999), Donoghue and Smith (2001) and Nielsen (2012); and to Olfactores by Brusca et al. (2016).
|Year||Name and author|
|1845||Coluber arcuatus von Meyer p. 42 figs. 5 pl. 2|
|1866||Vertebrata Haeckel p. CXVI|
|1894||Mannodon Ameghino p. 84|
|1989||Vertebrata Shoshani et al. p. 435|
|1998||Vertebrata Zrzavy et al.|
|1999||Vertebrata Dineley and Metcalf p. 11|
|1999||Vertebrata Shu et al. p. 43|
|2001||Vertebrata Donoghue and Smith p. 18|
|2011||Craniata Edgecombe et al. p. 153 figs. Fig. 1|
|2012||Vertebrata Nielsen p. 377|
|2016||Vertebrata Brusca et al.|
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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.