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首页> 外文期刊>Facies >Micromorphological, geochemical, and diagenetic characterization of sirenian ribs preserved in the Late Miocene paleontological site of Cessaniti (southern Calabria, Italy)
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Micromorphological, geochemical, and diagenetic characterization of sirenian ribs preserved in the Late Miocene paleontological site of Cessaniti (southern Calabria, Italy)

机译：切萨尼蒂中新世晚期古生物学遗址（意大利卡拉布里亚南部）保存的西里亚肋骨的微观形态，地球化学和成岩特征

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摘要

The site of Cessaniti (Vibo Valentia, Italy) has been well known since the 19th century for the richness and good preservation of its Miocene fauna and Xora. The sedimentary succession of the site represents a paralic system that evolved toward an open-marine environment recording the Tortonian transgression. The fossil assemblage contains rich invertebrate (corals, bivalves, gastropods, brachiopods, echinoids, benthic and planktonic foraminifers) and vertebrate faunas (proboscideans, rhinoceroses, giraYds, bovids, sirenids, marine turtles, and Wsh remains). The fossils recovered at the Cessaniti site have a relevant role in phylogenetic studies and paleogeographic reconstructions of Late Miocene environments of the southern Italy. This research is focused on the microstructure and preservation state of the fossil bones. Samples of Metaxytherium sp. bones have been analyzed to understand the diagenetic proWle of the bone assemblages that characterizes the taphonomic history of the Cessaniti site. The analyses provided a comprehensive account of how bone mineral (bioapatite) has been altered and demonstrated that the post-burial processes did not signiWcantly aVect the micromorphological and biogeochemical features of the bones. The excellent preservation state of the bones strengthens the importance of the Cessaniti site for studies of the Mediterranean Miocene vertebrate fauna.
机译：自19世纪起，切萨尼蒂（Cessaniti）的遗址（意大利维博瓦伦蒂亚）就以其中新世动物区系和Xora的丰富性和良好保存而闻名。该地点的沉积演替代表了一个向海系统发展，记录了Tortonian海侵的天堂系统。化石组合包含丰富的无脊椎动物（珊瑚，双壳类，腹足纲动物，腕足动物，棘突类动物，底栖生物和浮游有孔虫）和脊椎动物区系（长喙类，犀牛，giraYds，牛科动物，类人猿，海龟和Wsh遗骸）。在切萨尼蒂遗址发现的化石在意大利南部中新世晚期环境的系统发育研究和古地理重建中具有重要作用。这项研究集中在化石骨骼的微观结构和保存状态。 Metaxytherium sp。的样本。已对骨骼进行了分析，以了解表征切塞尼蒂（Cessaniti）站点的历史的骨组合的成岩过程。分析提供了有关如何改变骨矿物质（生物磷灰石）的全面说明，并表明埋葬后的过程并未显着影响骨骼的微观形态和生物地球化学特征。骨头的优异保存状态增强了切萨尼蒂遗址对地中海中新世脊椎动物的研究的重要性。

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