Xiazhuangocaris

Xiazhuangocaris is an extinct genus of bivalved arthropod known from the Cambrian aged Chengjiang Biota of Yunnan, China. Only a single specimen (NIGP 172765) is known, around 5.3 centimetres (2.1 in) long, which only preserves the anatomy of the carapace and the trunk. The bivalved carpace has a pronounced pair of notches at its front, as well as a posterior notch at its rear. The body had at least 13 tergite-pleurite rings, which terminate in a pair of rounded caudal rami, which are fringed with setae. The describing authors interpreted the taxon as a member of Hymenocarina, which contains other Cambrian bivalved arthropods.^[1]

Xiazhuangocaris Temporal range: Cambrian Stage 3 PreꞒ Ꞓ O S D C P T J K Pg N
Restoration
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Order:	†Hymenocarina
Genus:	†Xiazhuangocaris Zeng et al. 2020
Type species
Xiazhuangocaris chenggongensis Zeng et al. 2020