Cyathaspis
Temporal range: Wenlock to Ludlow
Reconstruction of C. banksii
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Infraphylum: Agnatha
Class: Pteraspidomorpha
Subclass: Heterostraci
Order: Cyathaspidiformes
Family: Cyathaspididae
Genus: Cyathaspis
Lankester, 1865
Type species
Pteraspis banksii
Huxley and Salter, 1856
Species
  • Cyathaspis acadica (Matthew 1886)
  • Cyathaspis banksii (Huxley & Salter 1856)
  • Cyathaspis barroisi (Leriche 1906)
  • Cyathaspis lindstromi Kiaer & Heintz 1935
  • Cyathaspis ludensis
  • Cyathaspis macculloughi (Woodward 1891)

Cyathaspis is the type genus of the heterostracan order Cyathaspidiformes.[1] Fossils are found in late Silurian strata in the Cunningham Creek Formation, New Brunswick, Canada and Europe, especially in the Downton Castle Sandstone of Great Britain and Gotland, Sweden.[citation needed] The living animal would have looked superficially like a tadpole, albeit covered in bony plates composed of the tissue aspidine, which is unique to heterostracan armor.[citation needed]

Cyathaspis ludensis is the earliest British vertebrate fossil.[citation needed] It was found in rocks at Leintwardine in Herefordshire, a noted fossil locality.[citation needed]

References

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  1. ^ Matthew, George Frederic (1888). On Some Remarkable Organisms of the Silunian and Devonian Rocks in Southern New Brunswick. pp. 52–54.