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Evolutionary disparity in the endoneurocranial configuration between small and gigantic tyrannosauroids

文献类型:期刊论文

作者Kundrat, Martin2; Xu, Xing5; Hancova, Martina1; Gajdos, Andrej1; Guo, Yu4; Chen, Defeng3
刊名HISTORICAL BIOLOGY
出版日期2020
卷号32期号:5页码:620-634
关键词Dinosauria tyrannosauroidea endocast brain evolution
ISSN号0891-2963
DOI10.1080/08912963.2018.1518442
通讯作者Kundrat, Martin(martin.kundrat@upjs.sk)
英文摘要In extinct archosaurs, brain proportions have been inferred from the morphology of fossilized endocasts. Here we provide the first neurocranial and paleoneurological description of the basal, small-bodied tyrannosauroid Dilong paradoxus compared with larger tyrannosaurids, like Tyrannosaurus rex. Dilong differs from other tyrannosauroids in the proportions of cerebral and cerebellar regions, morphology of venous sinuses, and superimposed position of the forebrain relative to the rest of the endocast. Whereas endocasts of Tyrannosaurus show a more linear configuration and likely contained within a thick intersticial space, the endocast of Dilong indicates an S-shaped brain protected by thinner meninges. Based on our statistic analysis and comparisons with modern crocodilians, we hypothesize that increased body size likely imposed a new spatial configuration for development of the central nervous system during the evolution of gigantism in tyrannosaurs.
WOS关键词TARBOSAURUS-BATAAR THEROPODA ; CRANIAL OSTEOLOGY ; BRAIN ; DINOSAUR ; ANATOMY ; ENDOCAST ; ALIORAMUS ; EAR
资助项目Grantova Agentura Ceske Republiky[P302/12/1207] ; National Natural Science Foundation of China[41120124002] ; National Natural Science Foundation of China[41688103] ; Center for Interdisciplinary Biosciences, Technology and Innovation Park, University of Pavol Jozef Safarik in Kosice
WOS研究方向Life Sciences & Biomedicine - Other Topics ; Paleontology
语种英语
WOS记录号WOS:000545702100005
出版者TAYLOR & FRANCIS LTD
资助机构Grantova Agentura Ceske Republiky ; National Natural Science Foundation of China ; Center for Interdisciplinary Biosciences, Technology and Innovation Park, University of Pavol Jozef Safarik in Kosice
源URL[http://119.78.100.205/handle/311034/17699]  
专题古脊椎动物与古人类研究所_图书馆1
通讯作者Kundrat, Martin
作者单位1.Pavol Jozef Safarik Univ, Fac Sci, Inst Math, Kosice, Slovakia
2.Pavol Jozef Safarik Univ, Ctr Interdisciplinary Biosci Technol & Innovat Pk, Kosice 04154, Slovakia
3.Capital Normal Univ, Beijing Higher Inst Engn Res Ctr Computerized Tom, Beijing, Peoples R China
4.Geol Museum China, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, Beijing, Peoples R China
推荐引用方式
GB/T 7714
Kundrat, Martin,Xu, Xing,Hancova, Martina,et al. Evolutionary disparity in the endoneurocranial configuration between small and gigantic tyrannosauroids[J]. HISTORICAL BIOLOGY,2020,32(5):620-634.
APA Kundrat, Martin,Xu, Xing,Hancova, Martina,Gajdos, Andrej,Guo, Yu,&Chen, Defeng.(2020).Evolutionary disparity in the endoneurocranial configuration between small and gigantic tyrannosauroids.HISTORICAL BIOLOGY,32(5),620-634.
MLA Kundrat, Martin,et al."Evolutionary disparity in the endoneurocranial configuration between small and gigantic tyrannosauroids".HISTORICAL BIOLOGY 32.5(2020):620-634.

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来源:古脊椎动物与古人类研究所

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