Taxonomic affinities of the enigmatic Prionogale breviceps , early Miocene, Kenya
Taxonomic affinities of the enigmatic Prionogale breviceps , early Miocene, Kenya
复制标题
肯尼亚中新世早期神秘的 Prionogale breviceps 的分类学亲缘关系
DOI：
10.1080/08912963.2017.1393075
复制
发表时间：
2017
影响因子：
1.4
通讯作者：
Stevens, Nancy J.
中科院分区：
文献类型：
--
作者：
Borths, Matthew R.;Stevens, Nancy J.
短头原丽鲷（Prionogale brevicepsis）是东非中新世早期的一种小型食肉哺乳动物。最初，标本被解释为该分类群的成年形态。齿系没有明显地将Prionogale与中新世早期非洲阿拉伯半岛的食肉谱系：Hyaenodonta和Carnivora。当Namasector在纳米比亚被发现时，这些小的分类群被放在Prionogalidae中，并与Hyaenodonta对齐。在这项研究中，基于保存乳牙系的鬣狗标本的比较，Prionogale的正模被重新解释为保留dP3和dP4。一些较低的牙齿标本归因于分类群保存dp4。Namasector的正模标本也保存了脱落的牙齿材料。一个系统发育分析，包括乳牙字符的一个更广泛的样本的鬣狗解决Prionogalidae作为一个分支。了解Prionogale的乳牙列允许未来的分析比较同源形态，并探讨环境因素，塑造食肉哺乳动物的进化通过中新世。
Prionogale brevicepsis a tiny carnivorous mammal from the early Miocene of eastern Africa. Originally, specimens were interpreted as the adult morphology of the taxon. The dentition did not obviously alignPrionogalewith the carnivorous lineages present in Afro-Arabia during the early Miocene: Hyaenodonta and Carnivora. WhenNamasectorwas discovered in Namibia, the small taxa were placed together in Prionogalidae and aligned with Hyaenodonta. In this study, based on comparisons to hyaenodont specimens preserving deciduous dentition, the holotype ofPrionogaleis reinterpreted as preserving dP3 and dP4. Some of the lower dental specimens attributed to the taxon preserve dp4. The holotype ofNamasectoralso preserves deciduous dental material. A phylogenetic analysis that includes deciduous dental characters for a broader sample of hyaenodonts resolved Prionogalidae as a clade. Understanding of the deciduous dentition ofPrionogaleallows future analyses to compare homologous morphology, and to explore the environmental factors that shaped carnivorous mammal evolution through the Miocene.