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Petromyzontida

Petromyzontida

Taxonomy
Petromyzontida is a class.

It was assigned to Petromyzontomorphi by Long (2011); and to Vertebrata by Van Der Laan (2019).

Sister taxa
Atelaspidiformes, Birkeniiformes, Cephalaspidida, Cephalaspidiformes (syn. Osteostraci), Galeaspidiformes, Pituriaspidiformes

Synonyms
Synonymy list
YearName and author
1971Cephalaspidomorphi Moy-Thomas and Mile
2002Cephalaspidomorphi Sepkoski
2011Cephalaspidomorphi Long p. 241
2011Petromyzontida Long p. 241
2016Cephalaspidomorphi Nelson et al. p. 33
2019Petromyzontida Van Der Laan p. 15

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
RankNameAuthor
phylumChordataHaeckel 1874
subphylumVertebrata
classPetromyzontida
classPetromyzontida

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.

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Fm. †Gilpichthyidae Halstead 1993
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G. †Gilpichthys Bardack and Richardson 1977
Fm. †Pipisciidae Halstead 1993
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G. †Pipiscius Badack and Richardson 1977
Invalid names: Cephalaspidomorphi Moy-Thomas and Mile 1971 [synonym]
Diagnosis
No diagnoses are available