Bailongia longicaudata: A new species of Artiopod from the Middle Cambrian Guanshan Biota of Yunnan Province, China.
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The Middle Cambrian Guanshan Biota of Yunnan Province, China, preserves a wide range of soft-bodied fossils with fidelity similar to that seen in the slightly younger Burgess Shale. These fossils were originally discovered during construction work, and the sites which yielded the first known Guanshan Biota fossils have subsequently been lost, but recognition of the importance of these fossils led to a search for new localities, with several subsequently being discovered in Yiliang, Malong, Wuding, and Huize counties, as well as sites within the city prefecture of Kunming. Among these fossils are rare non-Trilobite Artiopods (the group which includes the Trilobites as well as a variety of less well known Palaeozoic Arthropod clades, most of which did not survive beyond the Cambrian), although the last specimen was described in 2008.