Pteraspidomorphi Fossil range: Ordovician - Devonian
Drepanaspis gemuendina, accompanied by Tiaraspis subtilis
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Agnatha Subclass: 'Pteraspidomorphi'
Orders
Arandaspida Heterostraci Thelodontidae Eriptychiida Astraspida

Pteraspidomorphi is an extinct subclass of early jawless fish. The fossils show extensive shielding of the head. Some species may have lived in fresh water. The taxon contains the subgroups Heterostraci, Astraspida, Arandaspida and Eriptychiida.

External links

• tolweb.org

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Pteraspidomorphi

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