globalchange  > 过去全球变化的重建
DOI: 10.1016/j.palaeo.2016.06.012
论文题名:
An examination of the dietary habits of Platybelodon grangeri from the Linxia Basin of China: Evidence from dental microwear of molar teeth and tusks
作者: Semprebon G.M.; Tao D.; Hasjanova J.; Solounias N.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2016
卷: 457
起始页码: 109
结束页码: 116
语种: 英语
英文关键词: Diet ; Gomphothere ; Microwear ; Platybelodon ; Shovel-tusker
英文摘要: The paleodiet of shovel-tusked gomphotheres from the upper middle Miocene Hujialiang Formation of the Linxia Basin (Gansu Province, China) was assessed via molar microwear analysis of dental enamel. Both adults and an ontogenetic series of individuals of Platybelodon grangeri with assigned dental ages estimated via comparison of eruption and wear to that of extant elephants were analyzed. Mandibular tusks were also examined for microscopic scars to test a long-standing hypothesis that P. grangeri used its mandibular tusks to shovel substrate. Results show a consistent browsing signal throughout all of the age classes studied. Evenso, scratch numbers are higher and scratch widths are greater in older individuals indicating that coarser browse was consumed in older versus younger individuals. Results are more similar to those of the extant forest elephant (Loxodonta cyclotis) than to other extant forms (Loxodonta africana and Elephas maximus). Mandibular tusk microwear is very fine and inconsistent with the usage of lower tusks to shovel aquatic or terrestrial substrates and more consistent with stripping vegetation than as shoveling agents. © 2016 Elsevier B.V..
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/68355
Appears in Collections:过去全球变化的重建

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作者单位: Bay Path University, Department of Biology, Longmeadow, MA, United States; Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China; New York College of Osteopathic Medicine, Old Westbury, NY, United States; CAS Center for Excellence in Tibetan Plateau Earth Sciences, Beijing, China

Recommended Citation:
Semprebon G.M.,Tao D.,Hasjanova J.,et al. An examination of the dietary habits of Platybelodon grangeri from the Linxia Basin of China: Evidence from dental microwear of molar teeth and tusks[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2016-01-01,457
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