along with the horn-like rostrum, made Pteraspis very streamlined in shape, which is good for swimming. Pteraspis also had some stiff spikes on its back...

Rhinopteraspis is an extinct genus of pteraspidid heterostracan agnathan. "Rhinopteraspis cornubica (McCoy), with notes on the classification and evolution...

were portions of what would eventually be described as the heterostracan Pteraspis rostratus. C. lyelli, named after Sir Charles Lyell, would be left to...

Loricopteraspis Miltaspis Mitraspis Mylopteraspidella Mylopteraspis Podolaspis Pteraspis Rhinopteraspis Stegobranchiaspis Gigantaspididae Gigantaspis Protaspididae...

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:...

Denison later revised his findings and placed Protaspis priscillae into Pteraspis in 1970. In 1984, Alain Blieck further revised P. priscillae's classification...

†Pteraspidiformes Family: †Protaspididae Genus: †Protaspis Bryant, 1933 Type species Pteraspis bucheri Bryant, 1932 Species Protaspis bucheri (Bryant, 1932) Protaspis...

Cyathaspidiformes Family: Cyathaspidae Genus: Cyathaspis Lankester Type species Pteraspis banksii Huxley and Salter, 1856 Species C. acadica (Matthew 1886) C. banksii...

Pteraspidomorphs (Pteraspis shown) are prehistoric jawless fish characterized by their massive dermal head armour having large, median, ventral and dorsal...

by Dr. Errol Ivor White as one of five form-variants of Pteraspis rostrata, i.e., "Pteraspis rostrata var. waynesis. In 1984, Alain Blieck moved var....