Class †Placodermi Species E. megista | Phylum Chordata Rank Genus | |
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Family BuchanosteidaeWhite, 1952 Similar Narrominaspis, Burrinjucosteus, Goodradigbeeon, Taemasosteus, Arenipiscis | ||
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.
References
Exutaspis Wikipedia(Text) CC BY-SA