缅甸陆龟(爬行纲:龟鳖目)头骨高精度CT扫描数据集  

A dataset ofμCT scan of the skull of Indotestudo elongata(Reptilia:Testudines)

作　　者：李烂 殷亚磊 周长付 LI Lan;YIN Yalei;ZHOU Changfu(School of Earth and Space Sciences,Peking University,Beijing 100871,P.R China;College of Earth Science and Engineering,Shandong University of Science and Technology,Qingdao 266590,P.R.China)

机构地区：[1]北京大学,地球与空间科学学院,北京100871 [2]山东科技大学,地球科学与工程学院,山东青岛266590

出　　处：《中国科学数据（中英文网络版）》2021年第1期237-244,共8页China Scientific Data

基　　金：山东省泰山学者项目(201812070)。

摘　　要：龟鳖类根据颈部收缩方式分为颈部在垂直平面内弯曲收缩的曲颈龟亚目和颈部在水平平面内收缩的侧颈龟亚目两大类。曲颈龟亚目和侧颈龟亚目的单系性多次得到了形态学和分子学分支系统学研究的支持,且分子定年认为两个支系的分离发生在侏罗纪早期。但是目前关于龟鳖类内部的谱系关系,特别是曲颈龟类内部谱系关系依然存在分歧,其主要原因之一是龟鳖类的形态特征研究不够详细。所以,对龟鳖类化石和现生类群进行详细的形态学研究对厘清龟鳖类的谱系关系和演化具有重要意义。本文提供一件现生缅甸陆龟(Indotestudo elongata)的头骨标本的高精度CT扫描数据集,包括CT原始图片数据,根据CT数据重建的三维模型导出的stl文件及视频。缅甸陆龟属于曲颈龟亚目陆龟科印度陆龟属,其头骨CT数据在龟鳖类的形态学数据库中的补充可促进龟鳖类的形态学和系统发育学研究,而基于此重建的三维模型的3D打印模型可应用于教学、科研和科普。Turtles are divided into two categories,Cryptodira and Pleurodira,according to the way that a turtle retracts its neck into their shells.Monophyly of Cryptodira and Pleurodira is orthodoxly supported by the phylogenetic analyses of turtles based on morphological and molecular data.The molecular dating suggests that the two categories separated from each other in Early Jurassic.However,the interrelationships of turtles remain ambiguous,especially for Cryptodira.One of the main reasons is the inadequate knowledge of their morphology.Therefore,the morphological research into both the fossil and extant turtles is important for understanding the genealogical relationships and evolution of turtles.This paper provides a dataset of theμCT of Indotestudo elongata,including original CT slice images,stl-format files and videos derived from 3D models reconstructed from CT data.Indotestudo elongata is identified as a member of Testudinidae,which is a species of Cryptodira.Data for the skull of Indotestudo elongata based onμCT scan will contribute to further studies on turtles regarding their morphology and phylogeny.The printable 3D virtual models of the skull of Indotestudo elongata can be applied to research,teaching,and public education.

关 键 词：龟鳖类 形态学 系统发育学 高精度CT扫描 数据 

分 类 号：Q954[生物学—动物学]