Pteraspidiformes
![](/Images/godic/202502/05/Lamiaspis_longiripa3358.jpg")
![Rhinopteraspis fossil](/Images/godic/202502/05/Pteraspis_dunensis3358.jpg")
![Restoration of Larnovaspis](/Images/godic/202502/05/Pteraspis_NT3358.jpg")
Pteraspidiformes is an extinct order of heterostracan agnathan vertebrates known from extensive fossil remains primarily from Early Devonian strata of Europe and North America, and from Upper Silurian Canada.
Pteraspidiformes
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