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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()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
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.

Ariaspis ornata Denison 1963
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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.
Measurements
No measurements are available
Composition: hydroxyapatitesubp
Locomotion: actively mobilep
Created: 2007-09-27 04:49:26
Modified: 2017-03-09 14:07:44
Source: subp = subphylum, p = phylum
Reference: Kiessling 2004

Age range: Homerian or 430.50000 to 427.40000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Silurian443.8 - 419.2Canada (Yukon) Ariaspis ornata (type locality: 185831)
Homerian430.5 - 427.4Canada (Northwest Territories) Ariaspis ornata (497)