A stage (307.2–306.5 Ma ago) and substage of the Moscovian stage, preceded by the Podolskian and followed by the Krevyakinskian (Late Pennsylvanian epoch).
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。