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Pteraspis

Pteraspidomorpha - Pteraspidiformes

Taxonomy
Pteraspis was named by Kner (1847) [Sepkoski's age data: D Gedi-u D Emsi-l Sepkoski's reference number: 2]. It is not extant.

It was assigned to Cephalaspidae by Huxley (1861); to Pteraspidae by Hay (1902), Bryant (1932) and Jordan (1963); to Pteraspidinae by Denison (1970); to Pteraspididae by Woodward (1891) and Blieck (1984); to Pteraspidomorphes by Sepkoski (2002); and to Pteraspidoidei by Randle and Sansom (2017).

Synonyms
Synonymy list
YearName and author
1847Pteraspis Kner
1861Pteraspis Huxley p. 37
1891Pteraspis Woodward p. 159
1902Pteraspis Hay p. 339
1932Pteraspis Bryant p. 232
1958Plesiopteraspis Stensio p. 265
1963Pteraspis Jordan p. 585
1970Pteraspis Denison p. 4
1984Pteraspis Blieck p. 105
2002Pteraspis Sepkoski
2017Pteraspis Randle and Sansom p. 597

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumCraniata
RankNameAuthor
superclassPteraspidomorphi(Goodrich 1909)
classPteraspidomorpha
subclassHeterostraciLankester 1868
orderPteraspidiformesBerg 1940
suborderPteraspidoidei(Janvier 1996)
genusPteraspisKner 1847

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.

G. †Pteraspis Kner 1847
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†Pteraspis crouchi Lankester 1865
†Pteraspis dunensis Roemer 1854
†Pteraspis rostrata Agassiz 1835
Invalid names: Plesiopteraspis Stensio 1958 [synonym]
Diagnosis
ReferenceDiagnosis
R. H. Denison 1970Moderate-sized pteraspids. The rostrum somwhat elongate and with a preoral field developed on at least the posterior part of its ventral preoral surface. Branchial openings well in advance of the postero-lateral corners of the dorsal shield, and bounded by branchial and well-developed cornual plates.