theincisorenamelmicrostructureofminahuimammaliagliresanditsimplicationforthetaxonomyofbasalglires

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	theincisorenamelmicrostructureofminahuimammaliagliresanditsimplicationforthetaxonomyofbasalglires
	Mao Fangyuan; Li Chuankui; Wang Yuanqing; Li Qian; Meng Jin
	2016
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	54 期号:02 页码:137
摘要	The incisor enamel microstructure of Mina hui Li et al., 2016 from the upper Wanghudun Formation, Middle Paleogene of Qianshan, Anhui is described following the hierarchical system ranging from crystallites to Schmelzmuster. The enamel sample was taken from the upper incisor of the holotype. The enamel consists of a very thin prismless external layer, a relatively thick outer layer (PE) with radial enamel and an inner layer (PI) with multilayered Hunter-Schreger bands (HSB). The thickness of HSB is irregular and the inclination has a small angle; no transition zones between the HSB; prism cross sections are irregularly round; interprismatic matrix is very thick with crystallites in the PE running parallel to the prism long axes. These characters resemble pauciserial HSB in rodents. Ribbon-like prism seams and convergent crystallite discontinuities are consistent in different portions of the enamel, which are interpreted as a primitive feature for Glires, or even placental mammals. Compared with known enamel structure of basal Glires, the enamel of Mina stands for the earliest known evidence of double-layered enamel of the group. It indicates that the early evolution of Glires and placental mammals is complex and adds more details to the enamel microstructure of the earliest Glires.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/15620
专题	中国科学院古脊椎动物与古人类研究所
作者单位	中国科学院古脊椎动物与古人类研究所
第一作者单位	中国科学院古脊椎动物与古人类研究所
推荐引用方式 GB/T 7714	Mao Fangyuan,Li Chuankui,Wang Yuanqing,et al. theincisorenamelmicrostructureofminahuimammaliagliresanditsimplicationforthetaxonomyofbasalglires[J]. 古脊椎动物学报,2016,54(02):137.
APA	Mao Fangyuan,Li Chuankui,Wang Yuanqing,Li Qian,&Meng Jin.(2016).theincisorenamelmicrostructureofminahuimammaliagliresanditsimplicationforthetaxonomyofbasalglires.古脊椎动物学报,54(02),137.
MLA	Mao Fangyuan,et al."theincisorenamelmicrostructureofminahuimammaliagliresanditsimplicationforthetaxonomyofbasalglires".古脊椎动物学报 54.02(2016):137.

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