Cyathaspidiformes

Cyathaspidiformes Temporal range: Silurian-Devonian
Reconstruction of Cyathaspis banksii
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Pteraspidomorphi
Subclass:	Heterostraci
Order:	Cyathaspidiformes
Suborders, superfamilies and families
?Nakaolinaspididae Cyathaspidida Ariaspidae Ctenaspididae Cyathaspidae Amphiaspidida Amphiaspidoidei Amphiaspididae Edaphaspididae Gabreyaspididae Olbiaspididae Hibernaspidoidei Aphataspididae Eglonaspididae Hibernaspididae Siberiaspidoidei Siberiaspididae Tuxeraspididae
Synonyms
Amphiaspidiformes Berg 1940

Cyathaspidiformes is an extinct order of heterostracan vertebrates known from extensive fossil remains primarily from Silurian to Early Devonian strata of Europe, and North America, and from Early Devonian marine strata of Siberia.