中国生物多样性数据集专刊 最新来稿(未评审) · 版本 ZH1
中国河北晚侏罗世蝾螈亚目(两栖纲,有尾目)基干属种干沟青龙螈(Qinglongtriton gangouensis)骨骼高精度μCT三维数据集
3D high-resolution μCT dataset of skeletons of Qinglongtritongangouensis , a basal salamandroid (Amphibia, Caudata) from the Upper Jurassic of Hebei Province, China
: 2017 - 11 - 17
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摘要&关键字
摘要:古生物学研究正进入数字化时代。与传统的对化石的机械修理和连续切片技术相比,X光射线高精度断层扫描技术(high-resolution x-ray tomography或μCT)以其高精度、高效率和无损探测等优势迅速获得了古生物研究人员的青睐。干沟青龙螈(Qinglongtritongangouensis )是发现于中国河北晚侏罗世髫髻山组的蝾螈亚目的基干属种,距今约1亿6千万年。本文提供了该属种正型标本(PKUP V0226)和两件归入标本(PKUP V0228、PKUP V0254)的μCT源数据、正型标本上半身骨骼用于3D打印的stl文件以及三件标本的重建效果图和视频文件。这是高精度μCT技术在我国化石蝾螈类研究中的首次尝试。该技术的应用发现了青龙螈的多个独特形态特征,包括眶蝶骨的骨化缺失等,为蝾螈亚目早期特征演化研究提供了重要信息。本数据集为日后μCT扫描在蝾螈类研究中的应用提供了参照,同时其效果图、视频和可用于3D打印的虚拟模型也为公众了解原始蝾螈类化石提供了便利渠道。
关键字:河北省;髫髻山组;晚侏罗世;蝾螈亚目;干沟青龙螈;μCT扫描;3D打印
Abstract & Keywords
Abstract: It comes the digital era for Paleontological research. High resolution X-ray tomography (or μCT) has several advantages (high resolution, high efficiency and non-destructive detection) over traditional mechanical preparation and serial sectioning techniques when used to investigate fossil specimens. This new technique has been therefore widely used by paleontologists. Qinglongtritongangouensis is a primitive fossil salamander of the suborder Salamandroidea. Specimens of this taxon were discovered from the Upper Jurassic Tiaojishan Formation of Hebei Province, China, and the fossil beds date back to ~160 million years. This paper provides the μCT source data of the holotype (PKUP V0226) and two referred specimens (PKUP V0228, PKUP V0254) of Qinglongtriton gangouensis, a 3D printable stl formatted file of the upper body skeleton of PKUP V0226, and the images and videos displaying the reconstructed skeleton of the three specimens. This is the first attempt of employing μCT technique in study of fossil salamander specimens discovered from China. Several unique osteological features were recognized via μCT from this primitive salamander; for instance, the absence of ossified orbitosphenoid, provides deep insights in understanding the evolution of Salamandroidea’s characteristics. This dataset offers a comparison with next-generation μCT applications for fossil salamanders, and also opens a window to the amateurs for virtual access to these salamander fossil specimens by pictures, videos and 3D printable models.
Keywords: Hebei Province; Tiaojishan Formation; Late Jurassic; Salamandroidea; Qinglongtriton gangouensis; μCT scan; 3D printing
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技术支持:印刻学术