Sinoascus

Sinoascus paillatus is an extinct species of stem-group ctenophore, known from the Maotianshan shales of Yunnan, China. It is dated to Cambrian Stage 3 and belongs to late Early Cambrian strata.

Fossil specimens are poorly preserved, providing little details, if any at all, about the anatomy of the comb rows.

Burgess shale ctenophores

 * Fasciculus vesanus
 * Ctenorhabdotus capulus
 * Xanioascus canadensis

Maotianshan shales ctenophores

 * Maotianoascus octonarius
 * Daihua sanqiong