Identification uncertain: this looks more like like Cricocosmia than Maotianshania
解説Maotianshania detail CRF 02.jpg
English: A Maotianshania cyliindrica fossil hairworm, 48 mm along its length, Phylum Nematomorpha, Class Palaeoscolecida, Family Maotianshaniidae, from the Cheng Jiang Mao Tian Shan Shales, Quiongzhusi Section, Yu'anshan Member, Heilinpu Formation, HaiKou village (24.8° N, 102.6° E), Yunnan Province, China, from the Lower Cambrian (Atdabanian), approximately 518 million years old.