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Dental microwear texture analysis reveals a likely dietary shift within Late Cretaceous ornithopod dinosaurs

文献类型：期刊论文

作者Kubo, Tai8,9; Kubo, Mugino O.8; Sakamoto, Manabu7; Winkler, Daniela E.6,8; Shibata, Masateru5; Zheng, Wenjie4; Jin, Xingsheng4; You, Hai-Lu1,2,3
刊名PALAEONTOLOGY
出版日期2023-11-01
卷号66期号:6页码:17
关键词dental microwear texture analysis ornithopod dinosaurs angiosperm Cretaceous dietary reconstruction
ISSN号0031-0239
DOI10.1111/pala.12681
通讯作者Kubo, Tai(tai.kubo@oist.jp) ; You, Hai-Lu(youhailu@ivpp.ac.cn)
英文摘要Dinosaurs were the dominant megaherbivores during the Cretaceous when angiosperms, the flowering plants, emerged and diversified. How herbivorous dinosaurs responded to the increasing diversity of angiosperms is largely unknown due to the lack of methods that can reconstruct diet directly from body fossils. We applied dental microwear texture analysis (DMTA), an approach that quantifies microtopography of diet-induced wear marks on tooth surfaces, to ornithopods, the dinosaur clade that includes taxa with the most sophisticated masticatory system. We found that Late Cretaceous ornithopods have significantly rougher dental microwear texture (DMT) compared to pre-Late Cretaceous ornithopods, and DMT variation increased in hadrosaurids, a derived Late Cretaceous ornithopod clade. These changes indicate a likely temporal dietary shift towards more abrasive foodstuffs within ornithopods, probably due to the increased ingestion of phytoliths (amorphous silica bodies in plants). Phytoliths are a main source of rough DMT in modern herbivores, along with exogenous dust and grit, and were generally more concentrated in Late Cretaceous angiosperms than in other major plant groups. Our results show that DMTA of the occlusal enamel surface can be used to reconstruct the diets of herbivorous dinosaurs, with a resolution superior to conventional methods.
WOS关键词MEDICINE FORMATION ; VASCULAR PLANTS ; FEEDING ECOLOGY ; WEAR ; ANGIOSPERMS ; PHYTOLITHS ; EVOLUTION ; HYPOTHESES ; COPROLITES ; INNOVATION
资助项目JSPS[19J40003] ; JSPS[20F20325] ; JSPS[16K18615] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] ; National Natural Science Foundation of China[41688103] ; National Natural Science Foundation of China[41872021] ; National Natural Science Foundation of China
WOS研究方向Paleontology
语种英语
WOS记录号WOS:001111335300001
出版者WILEY
资助机构JSPS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://119.78.100.205/handle/311034/23078]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Kubo, Tai; You, Hai-Lu
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
2.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China
4.Zhejiang Museum Nat Hist, Hangzhou, Zhejiang, Peoples R China
5.Fukui Prefectural Univ, Dinosaur Res Inst, Fukui, Japan
6.Univ Kiel, Zool Inst, Kiel, Germany
7.Univ Lincoln, Sch Life & Environm Sci, Lincoln, England
8.Univ Tokyo, Grad Sch Frontier Sci, Dept Nat Environm Studies, Chiba, Japan
9.Okinawa Inst Sci & Technol Grad Univ, Macroevolut Unit, Onna, Okinawa, Japan
推荐引用方式
GB/T 7714		 Kubo, Tai,Kubo, Mugino O.,Sakamoto, Manabu,et al. Dental microwear texture analysis reveals a likely dietary shift within Late Cretaceous ornithopod dinosaurs[J]. PALAEONTOLOGY,2023,66(6):17.
APA Kubo, Tai.,Kubo, Mugino O..,Sakamoto, Manabu.,Winkler, Daniela E..,Shibata, Masateru.,...&You, Hai-Lu.(2023).Dental microwear texture analysis reveals a likely dietary shift within Late Cretaceous ornithopod dinosaurs.PALAEONTOLOGY,66(6),17.
MLA Kubo, Tai,et al."Dental microwear texture analysis reveals a likely dietary shift within Late Cretaceous ornithopod dinosaurs".PALAEONTOLOGY 66.6(2023):17.

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来源：古脊椎动物与古人类研究所

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