Skull Morphology of the Lizard Ptychoglossus vallensis (Squamata: Alopoglossidae) With Comments on the Variation Within Gymnophthalmoidea
Skull Morphology of the Lizard Ptychoglossus vallensis (Squamata: Alopoglossidae) With Comments on the Variation Within Gymnophthalmoidea
复制标题
DOI：
10.1002/ar.24038
复制
发表时间：
2019-07-01
影响因子：
2
通讯作者：
Daza, Juan D.
中科院分区：
文献类型：
--
作者：
Hernandez Morales, Cristian;Peloso, Pedro L. V.;Daza, Juan D.
近年来，裸眼总科的系统发育关系发生了重大变化，包括对裸眼总科的描述。最近的研究主要依赖于分子数据，没有考虑到来自其他来源的证据，如形态学。在这项研究中，我们提供了一个详细的骨骼Ptychoglossus vallensis的头骨描述，并比较这个物种与其他裸眼类。该描述基于10个清洁和染色的标本，4个分离的头骨和P. vallensis的计算机显微断层扫描数据。最新的系统发育假说的裸眼总科被用作一个框架，比较P. vallensis的头骨与其他物种的Alopoglossidae，裸眼，和Teiidae。在teiids的对比中，观察到了alopoglossids和gymnophthalalalopathy之间的显着相似性，可能是由于小型化产生的收敛。我们还定性分析了P. vallensis头骨的运动，得出的结论是高度运动不能，这是一种通常在掘地、主要是穴居的鳞片中进化出来的特征。我们还描述了一个独特的骨学特征Alopoglossidae是不知道在任何其他有鳞类组。Anat Rec，302：1074-1092，2019。(c)2018 Wiley Periodicals，Inc.
In recent years, major changes have been proposed for the phylogenetic relationships within the Gymnophthalmoidea, including the description of Alopoglossidae. Recent studies relied primarily on molecular data and have not accounted for evidence from alternative sources, such as morphology. In this study, we provide a detailed bone-by-bone description of the skull of Ptychoglossus vallensis and compare this species with other gymnophthalmoideans. The description was based on 10 cleared-and-stained specimens, four disarticulated skulls, and computed microtomography data of P. vallensis. Most recent phylogenetic hypothesis for the Gymnophthalmoidea was used as a framework to compare the skull of P. vallensis with other species of the Alopoglossidae, Gymnophthalmidae, and Teiidae. Marked similarities between alopoglossids and gymnophthalmids were observed in contrast to teiids, probably due to convergence generated by miniaturization. We also qualitatively analyzed the kinesis of the skull of P. vallensis concluding that is highly akinetic, a trait commonly evolved in fossorial, primarily burrowing squamates. We also describe one unique osteological feature for Alopoglossidae that is not known in any other squamate group. Anat Rec, 302:1074-1092, 2019. (c) 2018 Wiley Periodicals, Inc.