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Protaspis

Pteraspidomorpha - Pteraspidiformes

Synonymy list
YearName and author
1933Protaspis Bryant p. 294
1970Protaspis Denison p. 8
2017Protaspis 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)
genusProtaspis

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. †Protaspis Bryant 1933
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Subg. †Protaspis (Europrotaspis) White 1961
Subg. †Protaspis (Protaspis) Bryant 1933
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Protaspis brevirostris Bryant 1933
Protaspis cingulus Bryant 1933
Protaspis constrictus Bryant 1933
Diagnosis
ReferenceDiagnosis
W. L. Bryant 1933These are relatively large forms in which the dorsal shield
is strongly vaulted, the rostral plate short and broad, the branchials narrow. The ventral shield is ovate or tongue- shaped and weakly curved, more so posteriorly. The dermal skeleton is very thin. Its surface is o'rnamented with fine, subparallel dentine ridges that follow the outlines of the various plates. Nine species of Protaspis are known.
R. H. Denison 1970Moderate-sized to large pteraspids with the dorsal shield rather broad or highly vaulted. The rostrum very shor tto moderate in length, with the development of its ventral preoral surface dependent on the rostral length. The branchial plates long, the cornual plates reduced or absent, and the branchial openings at the postero-lateral corners of the shield. The dorsal spine usually small, recumbent, and scale-like.