Maotianshania cylindrica is an extinct worm-like creature of average size (up to 4 centimetres or 1.6 inches long and 2 millimetres or 0.079 inches wide). It occurs in the Lower Cambrian (Atdabanian) Chengjiang biota of Northeastern Yunnan, China. It is usually preserved as pink impression. The gut is a dark central zone. The anterior pharyx and "collar", carry tiny sepia-colored teeth. The very back-end of the body has two small hooks.