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摘要:
望谟生物群是我国西南部贵州省望谟地区新发现的一个早三叠世化石库，化石主要产自下三叠统罗楼组一段的薄层状泥岩、微晶灰岩之中。该化石库以菊石和节肢动物为特色，伴有双壳、箭石、腕足、牙形类、鱼类、微康奇虫，以及一些分类不明的化石类型，其时代为早三叠世印度期迪纳尔晚期（Late Dienerian）至奥伦尼克期史密斯早期（Early Smithian）。该生物群化石保存精美、数量丰富，生物种类多样，显示经历了二叠纪末生物大绝灭事件后，望谟地区在早三叠世已经具有一个复杂的海洋生态系统，为我们更全面了解早三叠世海洋生物多样性和生物复苏提供了一个新的窗口。
Abstract:A new Early Triassic fossil Lagerstätte was recently discovered in Wangmo County, Guizhou Province, southwest China, and it is named as the Wangmo biota. The fossils are recovered from thin bedded mudstones and microcrystalline limestones of Member I of the Lower Triassic Luolou Formation. The fossil assemblages are dominated by ammonites and arthropods in terms of individuals, accompanied by bivalves, belemnoids, brachiopods, conodonts, fishes, microconchids and problematic fossils. The age of the Wangmo biota is taken as the Late Dienerian (Indian) to the Early Smithian (Olenekian). The fossils are exceptionally preserved, with an abundance of fossils and high species diversity. The Wangmo biota suggests that a complex marine ecosystem was rebuilt during the Late Dienerian to the Early Smithian after the Permo–Triassic mass extinction, providing a new window for comprehensively understanding the early Triassic marine biodiversity and the process of marine biotic recovery.
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Key words:
- Wangmo biota /
- Biotic Recovery /
- Luolou Formation /
- Early Triassic /
- Guizhou Province
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