DOI: 10.1016/j.palaeo.2012.11.017
论文题名: Macrowear and occlusal microwear on teeth of cave bears Ursus spelaeus and brown bears Ursus arctos: Inferences concerning diet
作者: Pinto-Llona A.C.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2013
卷: 370 起始页码: 41
结束页码: 50
语种: 英语
英文关键词: Carnivora
; Diet
; Microwear
; Scanning electron microscope
; Ursus arctos
; Ursus spelaeus
英文摘要: Cave bears Ursus spelaeus are known from many limestone caves throughout the European Pleistocene. Despite the enormous quantities of fossils unearthed, many aspects of the cave bear ecology are still little known. Cave bear remains appear almost always with an array of variously sized tooth punctures, and the evidence from tooth mark types and sizes at several cave bear sites studied here indicates that cave bears themselves were responsible for the scavenging modifications recorded at these cave bear-only sites. Anatomical evidence for cave bear diet indicates that they had a tough-plant based diet and in addition, their powerful front legs suggest an enhanced digging capability that has sometimes been thought to relate to digging for tubers. Dental microwear analysis (DMA) approaches fossil and extant diets by comparing tooth wear for animals of known diet with that shown by fossils. Scanning electron microscope micrographs were prepared and the microwear features were measured. The results show differences in wear patterns between brown bears and cave bears from several locations and chronologies across northern Spain. There is no indication that these cave bears ate tubers or any food contaminated by soil; but the dental microwear observed indicates that they had a greater degree of bone consumption compared with brown bears. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69852
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Instituto de Historia, CCHS CSIC, c/Albasanz 26-28, Madrid 28037, Spain
Recommended Citation:
Pinto-Llona A.C.. Macrowear and occlusal microwear on teeth of cave bears Ursus spelaeus and brown bears Ursus arctos: Inferences concerning diet[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2013-01-01,370