论文部分内容阅读
一、古生物特征一>.晚三迭世须家河组1.植物化石,计35属73种,其中有节类3属9种,真蕨类10属25种,苏铁类6属13种,银
1. Paleontological characteristics 1. Late Triassic Xujiahe Formation 1. Plant fossils, accounting for 35 genera and 73 species, of which there are 9 genera and 3 genera, 10 genera and 25 species of ferns, 6 genera and 13 species of Cycas, silver