Guanshancaris is an extinct genus of amplectobeluid radiodont known from the Cambrian Stage 4 Guanshan Biota of southern China.

It is only known from a single species.

G. kunmingensis which was described in 2013 as a species of Anomalocaris[1] before being placed in a new genus in 2023.

Like many other radiodonts, it is only known from fragmentary remains, including its frontal appendages and the oral cone.

[2] Base on proportion of Anomalocaris, it is estimated to have reached up to 22.2–32.8 cm (8.7–12.9 in) long.