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Petromyzontida

Petromyzontida

Taxonomy
Petromyzontida is a class.

It was assigned to Petromyzontomorphi by Long (2011); to Vertebrata by Van Der Laan (2019); and to Cyclostomata by Miyashita et al. (2021).

Subtaxa
Gilpichthyidae, Petromyzontiformes (syn. Hyperoartii), Pipisciidae
Sister taxa
Petromyzontiformes (syn. Hyperoartii)

Synonyms
Synonymy list
YearName and author
1844Hyperoartia Müller
1963Hyperoartia Jordan p. 583
2003Hyperoartia Takezaki et al. p. 287
2011Petromyzontida Long p. 241
2019Petromyzontida Van Der Laan p. 15
2021Petromyzontida Miyashita et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
RankNameAuthor
subphylumVertebrata
superclassCyclostomataRichards
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
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†Gilpichthys greeni Bardack and Richardson 1977
Fm. †Pipisciidae Halstead 1993
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G. †Pipiscius Bardack and Richardson 1977
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†Pipiscius zangerli Bardack and Richardson 1977
Invalid names: Hyperoartia Müller 1844 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: actively mobilep
Created: 2017-04-17 15:11:50
Modified: 2017-04-17 15:11:50
Source: subp = subphylum, p = phylum
References: Carroll 1988, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Famennian to the top of the Early/Lower Aptian or 372.15000 to 119.57000 Ma
Minimum age of oldest fossil (stem group age): 358.86 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Famennian372.15 - 358.86South Africa (Eastern Cape) Petromyzontiformes indet., Priscomyzon riniensis (68049)
Arnsbergian326.9 - 323.6USA (Montana) Hardistiella montanensis (116654)
Moscovian315.2 - 307.0USA (Illinois) Mayomyzon pieckoensis (132078)
Westphalian D309.8 - 307.4USA (Illinois) Gilpichthys greeni, Pipiscius zangerli (122493)
Early/Lower Cretaceous143.1 - 100.5China (Hebei) Caeruleum gracilis, Caeruleum miraculum (237239)
Late/Upper Barremian - Early/Lower Aptian125.77 - 119.57China (Nei Mongol) Mesomyzon mengae (68047)