Pteraspid

Pteraspid; Temporal range: Upper Silurian-Devonian
	Lamiaspis longiripa
Scientific classification
Unrecognized taxon (fix):	Pteraspidiformes
Suborders and families
	Anchipteraspididae; Podolaspididae; Protopteraspididae; Psammosteida Drepanaspididae; Guerichosteidae; Obrucheviidae; Psammolepididae; Psammosteidae; Pycnosteidae; ; Pteraspidoidei Gigantaspididae; Larnovaspididae; Pteraspididae; Protaspididae; Rhinopteraspididae; Skalviaspididae; ;

Pteraspids were early agnathan vertebrates. They lived from later Silurian to the end of the Devonian. Fossils are found in Europe and North America.

The whole group has the head and front of the body armoured. Delicate, finger-like parts of the plates were at the edges of the mouth. This suggests they were filter feeders taking plankton from the water column.^[1]

Pteraspid Media

Rhinopteraspis fossil
Restoration of Larnovaspis

References

↑ Purnell, Mark A. 2002. Feeding in extinct jawless heterostracan fishes and testing scenarios of early vertebrate evolution. Proceedings of the Royal Society of London B: Biological Sciences. 269 (1486) 83-88.[1]

[purnell-1] Purnell, Mark A. 2002. Feeding in extinct jawless heterostracan fishes and testing scenarios of early vertebrate evolution. Proceedings of the Royal Society of London B: Biological Sciences. 269 (1486) 83-88.[1]

[1]

Pteraspid Temporal range: Upper Silurian-Devonian

Lamiaspis longiripa
Scientific classification
Unrecognized taxon (fix):	Pteraspidiformes
Suborders and families
Anchipteraspididae Podolaspididae Protopteraspididae Psammosteida Drepanaspididae Guerichosteidae Obrucheviidae Psammolepididae Psammosteidae Pycnosteidae Pteraspidoidei Gigantaspididae Larnovaspididae Pteraspididae Protaspididae Rhinopteraspididae Skalviaspididae