Diet reconstruction for an extinct deer (Cervidae: Cetartiodactyla) from the Quaternary of South America

被引：15

作者：

Rotti, Alline ^{[1
]}

Mothe, Dimila ^{[1
]}

Avilla, Leonardo dos Santos ^{[1
]}

Semprebon, Gina M. ^{[2
]}

机构：

[1] Univ Fed Estado Rio de Janeiro, Dept Zool, Lab Mastozool, Ave Pasteur 458,Sala 501, BR-22290240 Rio De Janeiro, RJ, Brazil

[2] Bay Path Univ, Dept Biol, Longmeadow St 588, Longmeadow, MA 01106 USA

来源：

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY | 2018年 / 497卷

关键词：

Morenelaphus; Enamel microwear; Pleistocene; Paleoecology; Paleodiet; LOW-MAGNIFICATION STEREOMICROSCOPY; DENTAL MICROWEAR TEXTURE; SCANNING-ELECTRON-MICROSCOPY; LATE PLEISTOCENE; NORTH-AMERICA; TOOTH MICROWEAR; LATE MIOCENE; PREMAXILLARY SHAPE; FEEDING ECOLOGY; FOSSIL MAMMALS;

D O I：

10.1016/j.palaeo.2018.02.026

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Among the extinct cervids of the Pleistocene in South America, Morenelaphus has the most abundant fossil record and the broadest geographic distribution. However, the paleoecology of Morenelaphus is poorly known, especially its dietary patterns; thus, this study aims to recognize the feeding habits of this extinct cervid through analysis of microwear. The microwear analysis indicated a mixed-feeder diet for Morenelaphus; both high pit values and frequency of individuals with low number of fine scratches indicated the consumption of grasses, possibly including grit (siliciclastic sediment), ingested during feeding. Also, our results suggest that Morenelaphus possibly went extinct at the Pleistocene-Holocene transition as a result of climate/environmental changes and/or a physiological/nutritional crisis.

引用

页码：244 / 252

页数：9

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