Here is a good specimen of a soft body arthropod or Trilobitomorph of the genus Naraoia.
This Naraoia has the head partially fliped under. Anyway it  is an inexpensive example of a detailed soft body fossil from the Chengjiang Lagerstatte. And it shows the typical spines of the species Naraoia spinosa.
The term “Trilobitomorph* (sesu Størmer) is actually outdated but still descries the systematic controversy of this group its closer relation to the class of Trilobita.  
 

Location:

Chengjiang, eastern Yunnan Province, South China

Size trilobite:

about 10 mm long

Age:

Lower Cambrian, Heilinpu Fm., Yu'anshan Member, (about. 522 Mill. y.o.)