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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).

Subtaxa
Atelaspidiformes, Ateleaspis, Birkeniiformes, Cephalaspidida, Cephalaspidiformes (syn. Osteostraci), Galeaspidiformes, Gilpichthyidae, Pipisciidae, Pituriaspidiformes
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
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: marinesubp
Locomotion: fast-movingc
Life habit: nektonicc
Diet: carnivorec
Created: 2009-10-08 12:24:48
Modified: 2009-10-08 14:24:48
Source: c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988

Age range: base of the Homerian to the top of the Eifelian or 430.50000 to 387.70000 Ma

Collections (44 total)


Time interval Ma Country or state Original ID and collection number
Llandovery - Wenlock443.4 - 427.4United Kingdom (Scotland) Birkenia sp. (26889)
Wenlock - Ludlow433.4 - 423.0United Kingdom (Scotland) Birkenia sp., Lasanius sp., Ateleaspis sp. (26906)
Homerian430.5 - 427.4Sweden Oeselaspis pustulata, Saaremaaspis mickwitzi, Tremataspis milleri (179989) Oeselaspis pustulata, Saaremaaspis mickwitzi, Tremataspis milleri, Tremataspis schmidti (179988) Saaremaaspis mickwitzi, Tremataspis milleri, Tremataspis schmidti (179987) Tremataspis schmidti (179990)
Ludlow427.4 - 423.0United Kingdom (Scotland) Birkenia sp., Lasanius sp., Ateleaspis sp. (26896)
Rootsikula426.2 - 422.9Norway Ateleaspis sp. (14308 26927 26928)
Rootsikula426.2 - 422.9Estonia Cephalaspidoformes indet. (26922) Oeselaspis pustulata, Saaremaaspis mickwitzi, Witaaspis schrenckii, Tremataspis schmidti (13824) Saaremaaspis mickwitzi, Tremataspis simonsoni, Witaaspis schrenckii, Tremataspis schmidti (13823)
Pridoli423.0 - 419.2Canada (Nunavut) Hemicyclaspis murchisoni (90324)
Pridoli423.0 - 419.2Lithuania Cephalaspis sp. (207344)
Pridoli423.0 - 419.2United Kingdom (England) Hemicyclaspis sp. (26915) Thyestes sp., Hemicyclaspis sp. (26917)
Pridoli - Helderbergian423.0 - 393.3Russian Federation Tannuaspis levenkoi (24785)
Paadla422.9 - 419.2Estonia Cephalaspidoformes indet. (26925) Oeselaspis pustulata, Procephalaspis oeselensis, Tremataspis mammillata, Tremataspis milleri, Tremataspis panderi, Tremataspis patteni, Tremataspis rohoni, Tremataspis scalaris, Witaaspis schrenckii (13826)
Paadla422.9 - 419.2Estonia (Saaremaa) Oeselaspis pustulata, Procephalaspis oeselensis, Tremataspis mammillata, Tremataspis milleri, Witaaspis schrenkii (195601)
Lochkovian419.2 - 410.8USA (Wyoming) Cephalaspis sp. (153534)
Lochkovian419.2 - 410.8Canada (Nova Scotia) Cephalaspis sp. (14201) Cephalaspis sp., Cephalaspis novaescotiae (161378)
Lochkovian419.2 - 410.8United Kingdom (Scotland) Cephalaspis sp. (26908)
Lochkovian419.2 - 410.8United Kingdom (Herefordshire) Cephalaspis sp. (201736)
Lochkovian419.2 - 410.8Ukraine Cephalaspis sp. (26978)
Lochkovian419.2 - 410.8United Kingdom (England) Benneviaspis salopiensis, Kiaeraspis sp. (90352) Cephalaspis sp. (26918)
Lochkovian - Pragian419.2 - 407.6Ukraine Cephalaspis kozlowskii (23447)
Pragian410.8 - 407.6Ukraine Cephalaspis bucovinensis (90348)
Emsian407.6 - 393.3Canada (New Brunswick) Cephalaspis campbelltonensis, Cephalaspis canadensis, Cephalaspis jexi (161373) Cephalaspis sp., Cephalaspis acadica (161372)
Emsian407.6 - 393.3Canada (Quebec) Cephalaspis dawsoni (161376) Cephalaspis westolli (161379)
Emsian407.6 - 393.3USA (Wyoming) Cephalaspis wyomingense (26176)
Eifelian393.3 - 387.7Latvia Cephalaspidida indet. (225795 225796 225797)
Eifelian393.3 - 387.7Estonia Cephalaspidida indet. (225791 225792 225793 225794)
Early/Lower Givetian388.1 - 383.7Estonia Cephalaspidida indet. (225804)