NEW BIVALVED ARTHROPODS FROM THE EARLY CAMBRIAN GUANSHAN FAUNA IN THE KUNMING AND WUDING AREA
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Abstract:
Wu report the new materials of two bivalved arthropods, Tuzoia and Isoxys, from the greenish mudstones of the lower part of the Wulongqing Formation, Canglangpuian, Lower Cambrian in Kunming and Wuding area. The generic characteristics, geological and geographic distribution, soft tissues, taxonomic position, paleoecology, and the evolution trend of the two bivalved arthropods are also discussed. Three species (including 2 new species) of Tuzoia and Isoxys from the Guanshan Fauna are described in detail, including Tuzoia sinensis P'an, 1957,T. tylodesa Luo et Hu sp. nov., Isoxys wudingensis Luo et Hu sp. nov. and I. sp.
