presenceofthecalcanealcanalinbasalglires

IVPP-IR

	presenceofthecalcanealcanalinbasalglires
	Zhang Zhaoqun; Li Chuankui; Wang Jian; Wang Yuanqing; Meng Jin
	2016
发表期刊	古脊椎动物学报
ISSN	1000-3118
卷号	54 期号:03 页码:235
摘要	A unique canal (calcaneal canal) running diagonally through the calcaneus was commonly considered as characteristic for lagomorphs, both extant and fossil, but absent in rodents and other pertinent lagomorph relatives. However, our investigation of a calcaneus from the Middle Paleocene of Qianshan, Anhui Province and specimens previously grouped in Mimotonidae also shows presence of canals on calcaneus bones. To further explore the unique character, we scanned calcanei of Ordolagus, Mimolagus, Gomphos, Rhombomylus, and Oryctolagus using microCT and investigated the calcanei of some other related taxa under microscope. Three-dimensional reconstructions of the calcanei based on CT data of these taxa confirmed the presence of apertures traversing the large medullary cavity. The diagonally oriented calcaneal canal is present not only in lagomorphs, but also in non-lagomorph duplicidentates, such as Mimotona, Gomophos, and simplicidentates, such as Rhombomylus, though smaller in size. Hence, the presence of calcaneal canal may be one of the synapomophic characters for Glires, not only for the order Lagomorpha. The shared calcaneus character confirms the close relationship between Simplicidentata and Duplicidentata.
语种	英语
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/15213
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	Zhang Zhaoqun,Li Chuankui,Wang Jian,et al. presenceofthecalcanealcanalinbasalglires[J]. 古脊椎动物学报,2016,54(03):235.
APA	Zhang Zhaoqun,Li Chuankui,Wang Jian,Wang Yuanqing,&Meng Jin.(2016).presenceofthecalcanealcanalinbasalglires.古脊椎动物学报,54(03),235.
MLA	Zhang Zhaoqun,et al."presenceofthecalcanealcanalinbasalglires".古脊椎动物学报 54.03(2016):235.

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