In contrast,during the Famennian the radiolarian fauna was well developed and diversified. 相反，放射虫动物群在法门期得到了重大发展。
This conclusion provides evidence that radiolarian abundance and diversity are indicators for investigating sea-level changes. 煤山剖面放射虫动物群与海平面变化之间的这种耦合性为海平面变化的研究提供了依据。
