Phymosteus liui is an extinct large selenosteid arthrodire placoderm known from the Lower Famennian Xiejingshi Formation of Shimen County, Hunan province, in central China.[1]

The holotype and only known specimen of P. liui is a V-shaped median dorsal plate with a distinctive texture.[1] Because the fossil is incomplete, its exact relationship to the other selenosteids can not be satisfactorily determined.

References

  1. ^ a b c Wang, Junqing, and Min Zhu. "A new eubrachythoracid arthrodire from the upper devonian of Hunan China." Vertebrata Pal Asiatica 42.2 (2003): 154-161. [1]


Allikas: https://en.wikipedia.org/wiki/Phymosteus
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