Anchipteraspididae

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

Anchipteraspididae Temporal range: Early Pridolian-Early Devonian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Pteraspidomorphi
Subclass:	†Heterostraci
Order:	†Pteraspidiformes
Family:	†Anchiteraspididae (Elliot 1984)
Genera
†Anchipteraspis †Rhachiaspis †Ulutitaspis
Synonyms
Anchipteraspidinae Elliott 1984

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