The renowned Yangtze micromolluscan fauna has a total of 61 species, assigned to 48 genera, 26 families and 6 classes. The appearance of the Yangtze micromolluscan fauna indicated another maior event in the systematic...The renowned Yangtze micromolluscan fauna has a total of 61 species, assigned to 48 genera, 26 families and 6 classes. The appearance of the Yangtze micromolluscan fauna indicated another maior event in the systematically evolutionary history of invertebrates following the Ediacaran faunas, representing the diversification and radial evolution for the first time in the phylogenetic history of the shelled molluscs, and also providing the best substantial evidence for the division and correlation of the international Precambrian-Cambrian boundary.展开更多
文摘The renowned Yangtze micromolluscan fauna has a total of 61 species, assigned to 48 genera, 26 families and 6 classes. The appearance of the Yangtze micromolluscan fauna indicated another maior event in the systematically evolutionary history of invertebrates following the Ediacaran faunas, representing the diversification and radial evolution for the first time in the phylogenetic history of the shelled molluscs, and also providing the best substantial evidence for the division and correlation of the international Precambrian-Cambrian boundary.
