''Yiminaspis shenme'' is a species of primitive

arthrodire Arthrodira (Greek for "jointed neck") is an order of extinct armored, jawed fishes of the class Placodermi that flourished in the Devonian period before their sudden extinction, surviving for about 50 million years and penetrating most marine eco ...

placoderm from

Emsian The Emsian is one of three faunal stages in the Early Devonian Epoch. It lasted from 407.6 ± 2.6 million years ago to 393.3 ± 1.2 million years ago. It was preceded by the Pragian Stage and followed by the Eifelian Stage. It is named after the ...

-aged marine strata in

Yunnan Yunnan , () is a landlocked province in the southwest of the People's Republic of China. The province spans approximately and has a population of 48.3 million (as of 2018). The capital of the province is Kunming. The province borders the C ...

, China. It is closely related to '' Wuttagoonaspis'' of Middle Devonian Australia. ''Y. shenme'' is known from a flattened partial skull and portions of the thoracic armor.

Etymology

The genus name translates as "

Yi People The Yi or Nuosu people,; zh, c=彝族, p=Yízú, l=Yi ethnicity historically known as the Lolo,; vi, Lô Lô; th, โล-โล, Lo-Lo are an ethnic group in China, Vietnam, and Thailand. Numbering nine million people, they are the sev ...

's shield", deriving from the

Chinese Chinese can refer to: * Something related to China * Chinese people, people of Chinese nationality, citizenship, and/or ethnicity **''Zhonghua minzu'', the supra-ethnic concept of the Chinese nation ** List of ethnic groups in China, people of ...

name ''Yímín'' (, an ethnic group in China, Vietnam, and Thailand) and the

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

word '' aspis'' ("a type of round shield"). The specific name is from Chinese ''shénme'' (), as in "what is it?" reference to the peculiar anatomy of this prehistoric fish.

References

Fossil taxa described in 2008 Wuttagoonaspidae Placoderms of Asia {{Placoderm-stub