Biology:Exutaspis

Exutaspis Temporal range: Emsian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	Arthrodira
Family:	Buchanosteidae White, 1952
Genus:	Exutaspis
Species:	E. megista
Binomial name
Exutaspis megista Liu & Wang, 1981

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

Wikidata ☰ Q16963387 entry