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Ariaspis ornata

Pteraspidomorpha - Ariaspididae

Taxonomy
Ariaspis ornata was named by Denison (1963). Its type specimen is PU 17103, a partial skeleton, and it is a 3D body fossil. Its type locality is Beaver River, which is in a Silurian marine dolomite in Canada. It is the type species of Ariaspis.

Synonymy list
YearName and author
1963Ariaspis ornata Denison p. 120

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

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
R. H. Denison 1963This is a small species, with the length of the dorsal shield 21.5 mm. The ratio of width/length is .72. The dentine ridges are fine, 7.5 to 8 per millimeter, and have sharply or roundly convex crests.