南盘江盆地首次发现早三叠世海生爬行动物化石

The first discovery of marine reptile fossils from the Early Triassic of the Nanpanjiang Basin

摘要: 首次在南盘江盆地望谟地区下三叠统罗楼组灰岩中发现了海生爬行动物化石，爬行动物化石层位相伴产出大量菊石、腕足、双壳、牙形石等，其时代属早三叠世奥伦尼克期的Spathian亚期。该发现对于研究早三叠世海洋生态复苏、海生爬行动物类群起源、早期演化具有十分重要的科学意义。

Abstract: Marine reptiles fossils, accompanied by abundant ammonites, brachipods, bivalves, conodonts and some other fossils, were discovered for the first time from the Lower Triassic Luolou Formation in Wangmo area of the Nanpanjiang Basin. Their age belongs to the Spathian substage of the Early Triassic Olenekian stage. This new discovery has a prominent significance for understanding the recovery of the Early Triassic marine ecosystem as well as the study of the origin and evolution of early marine reptiles in Early Triassic period.