Anchipteraspididae

Anchipteraspididae; Temporal range: Early Pridolian-Early Devonian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Infraphylum:	Agnatha
Class:	† Pteraspidomorpha
Subclass:	† Heterostraci
Order:	† Pteraspidiformes
Family:	† Anchipteraspididae ; Elliot, 1984
Genera
	† Anchipteraspis ; † Rhachiaspis ; † Ulutitaspis ;
Synonyms
	Anchipteraspidinae Elliott, 1984;

Last updated November 24, 2025

Anchipteraspididae is an extinct family of heterostracan vertebrates restricted to Late Silurian and Early Devonian strata of Arctic Canada.^[1]

Anchipteraspidids superficially resemble the ancestral cyathaspidids, but, the articulation and growth patterns of the plates clearly define them as pteraspidids.

References

↑ Elliott, D. K. "A new subfamily of the Pteraspididae (Agnatha, Heterostraci) from the upper Silurian and lower Devonian of Arctic Canada." Palaeontology 27.1 (1984): 169-197. Archived 2015-10-21 at the Wayback Machine

On the recent discovery of Pteraspidian fish in the upper Silurian rocks of North America. Edward Waller Claypole, Quart. Journ. Geol. Soc. 1885, volume 41, pages 48–64, doi : 10.1144/GSL.JGS.1885.041.01-04.10
Revised classification of Pteraspididae with description of new forms from Wyoming. Robert Howland Denison, Fieldiana. Geology; v. 20, no. 1, doi : 10.5962/bhl.title.3330

External links

Data related to Anchipteraspididae at Wikispecies
Commentary of Pteraspidiformes

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[elliot1984-1] Elliott, D. K. "A new subfamily of the Pteraspididae (Agnatha, Heterostraci) from the upper Silurian and lower Devonian of Arctic Canada." Palaeontology 27.1 (1984): 169-197. Archived 2015-10-21 at the Wayback Machine

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