Pteraspidomorphi

Pteraspidomorphi Temporal range: Furongian to Late Devonian PreꞒ Ꞓ O S D C P T J K Pg N
Pteraspis
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Infraphylum:	Agnatha
Class:	†Pteraspidomorphi Goodrich, 1909
Type species
Pteraspis rostrata Agassiz, 1835
Subgroups[1]
†Anatolepis †Arandaspida †Heterostracomorphi †Astraspida †Eriptychiida †Heterostraci

Pteraspidomorphi is an extinct class of early jawless fish. They have long been regarded as closely related or even ancestral to jawed vertebrates, but the few characteristics they share with the latter are now considered as basal traits for all vertebrates.