| Clypecaris Temporal range: | |
|---|---|
 | |
| Fossil of C. pteroidea | |
 | |
| Fossil of C. serrata | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Order: | † Hymenocarina |
| Genus: | † Clypecaris Hou, 1999 |
| Species | |
| |
Clypecaris is genus of bivalved Cambrian arthropod known from the Chengjiang biota of Yunnan, China. The genus was initially described for the type species C. pteroidea by Hou, 1999. [1] A second species C. serrata was described by Yang et al. in 2016. The species are primarily distinguished by the presence of a serrated edge on the front of the carapace of C. serrata. C. serrata is noted for the modification of an anterior pair of limbs into spined grasping appendages, indicating a predatory lifestyle. It is unknown whether a similar structure was present in C. pteroidea. [2] Clypecaris is considered to likely be a member or a close relative of Hymenocarina, and is closely related to Perspicaris . [3] [4] As well as to Ercaicunia . [5]
