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

doi:10.1111/pala.12681

IVPP-IR

	Dental microwear texture analysis reveals a likely dietary shift within Late Cretaceous ornithopod dinosaurs
	Kubo, Tai 1,2; Kubo, Mugino O.2; Sakamoto, Manabu 3; Winkler, Daniela E.2,4; Shibata, Masateru 5; Zheng, Wenjie 6; Jin, Xingsheng 6; You, Hai-Lu7,8,9
	2023-11-01
发表期刊	PALAEONTOLOGY
ISSN	0031-0239
卷号	66 期号:6 页码:17
通讯作者	Kubo, Tai(tai.kubo@oist.jp) ; You, Hai-Lu(youhailu@ivpp.ac.cn)
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.
关键词	dental microwear texture analysis ornithopod dinosaurs angiosperm Cretaceous dietary reconstruction
DOI	10.1111/pala.12681
关键词[WOS]	MEDICINE FORMATION ; VASCULAR PLANTS ; FEEDING ECOLOGY ; WEAR ; ANGIOSPERMS ; PHYTOLITHS ; EVOLUTION ; HYPOTHESES ; COPROLITES ; INNOVATION
收录类别	SCI
语种	英语
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
项目资助者	JSPS ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:001111335300001
出版者	WILEY
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23079
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.Okinawa Inst Sci & Technol Grad Univ, Macroevolut Unit, Onna, Okinawa, Japan 2.Univ Tokyo, Grad Sch Frontier Sci, Dept Nat Environm Studies, Chiba, Japan 3.Univ Lincoln, Sch Life & Environm Sci, Lincoln, England 4.Univ Kiel, Zool Inst, Kiel, Germany 5.Fukui Prefectural Univ, Dinosaur Res Inst, Fukui, Japan 6.Zhejiang Museum Nat Hist, Hangzhou, Zhejiang, Peoples R China 7.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 8.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China 9.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
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.