Exutaspis
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Exutaspis Temporal range: Emsian |
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|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | †Placodermi |
| Order: | Arthrodira |
| Family: |
Buchanosteidae White, 1952 |
| Genus: | Exutaspis |
| Species: | E. megista |
| Binomial name | |
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Exutaspis megista Liu & Wang, 1981 |
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Exutaspis megista is an extinct, "giant" buchanosteid arthrodire placoderm. Its fossils have been found in the Late Emsian-aged marine strata of the Jiucheng and Haikou Formations in Wuding, Yunnan.
It was originally described as a phlyctaeniid. Later, after comparison with the Chinese Buchanosteus guanxianesis, Exutaspis was reappraised as a buchanosteid. The holotype, a "head roof," is 21 cm (8.3 in) long.
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