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Ariaspis arctata

Pteraspidomorpha - Ariaspididae

Taxonomy
Ariaspis arctata was named by Elliott and Swift (2010). Its type specimen is NMC 41370, a partial skeleton, and it is a 3D body fossil. Its type locality is Pressure Point, east, which is in a Pridoli marine sandstone in the Somerset Island Formation of Canada.

Synonymy list
YearName and author
2010Ariaspis arctata Elliott and Swift p. 1876 figs. (Figs. 2, 3,4C; Table 1

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumCraniata
RankNameAuthor
superclassPteraspidomorphi(Goodrich 1909)
classPteraspidomorpha
subclassHeterostraciLankester 1868
familyAriaspididae
genusAriaspis
speciesarctata

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.

Diagnosis
ReferenceDiagnosis
D. K. Elliott and S. Swift 2010An Ariaspis with a maximum length of 21.5 mm and a length/width ratio of 0.71-0.76. Ridges are sharp-crested and coarse (3.5-4 per mm). Posterior median projection not scale-like.