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Comparative cranial biomechanics reveal that Late Cretaceous tyrannosaurids exerted relatively greater bite force than in early-diverging tyrannosauroids

文献类型：期刊论文

作者Johnson-Ransom, Evan1,10; Li, Feng9; Xu, Xing7,8; Ramos, Raul6; Midzuk, Adam J.5; Thon, Ulrike4; Atkins-Weltman, Kyle3; Snively, Eric2
刊名ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
出版日期2023-09-29
页码21
ISSN号1932-8486
关键词biomechanics DinosauriafeedingPaleontologyTheropoda
DOI10.1002/ar.25326
通讯作者Johnson-Ransom, Evan(ejohnsonransom@uchicago.edu)
英文摘要Tyrannosaurus has been an exemplar organism in feeding biomechanical analyses. An adult Tyrannosaurus could exert a bone-splintering bite force, through expanded jaw muscles and a robust skull and teeth. While feeding function of adult Tyrannosaurus has been thoroughly studied, such analyses have yet to expand to other tyrannosauroids, especially early-diverging tyrannosauroids (Dilong, Proceratosaurus, and Yutyrannus). In our analysis, we broadly assessed the cranial and feeding performance of tyrannosauroids at varying body sizes. Our sample size included small (Proceratosaurus and Dilong), medium-sized (Teratophoneus), and large (Tarbosaurus, Daspletosaurus, Gorgosaurus, and Yutyrannus) tyrannosauroids, and incorporation of tyrannosaurines at different ontogenetic stages (small juvenile Tarbosaurus, Raptorex, and mid-sized juvenile Tyrannosaurus). We used jaw muscle force calculations and finite element analysis to comprehend the cranial performance of our tyrannosauroids. Scaled subtemporal fenestrae areas and calculated jaw muscle forces show that broad-skulled tyrannosaurines (Tyrannosaurus, Daspletosaurus, juvenile Tyrannosaurus, and Raptorex) exhibited higher jaw muscle forces than other similarly sized tyrannosauroids (Gorgosaurus, Yutyrannus, and Proceratosaurus). The large proceratosaurid Yutyrannus exhibited lower cranial stress than most adult tyrannosaurids. This suggests that cranial structural adaptations of large tyrannosaurids maintained adequate safety factors at greater bite force, but their robust crania did not notably decrease bone stress. Similarly, juvenile tyrannosaurines experienced greater cranial stress than similarly-sized earlier tyrannosauroids, consistent with greater adductor muscle forces in the juveniles, and with crania no more robust than in their small adult predecessors. As adult tyrannosauroid body size increased, so too did relative jaw muscle forces manifested even in juveniles of giant adults.
WOS关键词FINITE-ELEMENT-ANALYSIS ; PHYLOGENETIC POSITION ; DINOSAURIA THEROPODA ; TARBOSAURUS-BATAAR ; EVOLUTION ; PERFORMANCE ; MECHANICS ; OSTEOLOGY ; ARCTOMETATARSUS ; MORPHOLOGY
资助项目David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti[NHM R 4860] ; David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti[IVPP 14243] ; David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti[FMNH PR 2081] ; David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti[BMRP 2002.4.1] ; David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti[kriegsteini LH PV18] ; David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti[USNM 555000]
WOS研究方向Anatomy & Morphology
语种英语
出版者WILEY
WOS记录号WOS:001074840400001
资助机构David Silva of Beasts of the Mesozoic provided the 3D skull models of Proceratosaurus NHM R 4860 and Dilong IVPP 14243. We acknowledge the CT-scan data provided by Brian Cooley, Prathiba Bali, and Steven Rowe for sculpti
源URL[http://119.78.100.205/handle/311034/22630]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Johnson-Ransom, Evan
作者单位1.Univ Chicago, Dept Organismal Biol & Anat, 1027 E 57th St, Chicago, IL 60637 USA
2.Oklahoma State Univ, Coll Osteopath Med Cherokee Nation, Tahlequah, OK USA
3.Oklahoma State Univ, Coll Osteopath Med, Tulsa, OK USA
4.Mannheim Univ Appl Sci, Informat Dept, Mannheim, Germany
5.Univ Witwatersrand, Evolutionary Studies Inst, Sch Geosci, Johannesburg, South Africa
6.Rocky Mt Coll Art & Design, Illustrat Dept, Lakewood, CO USA
7.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing, Peoples R China
8.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming, Peoples R China
9.Tianjin Nat Hist Museum, Tianjin, Peoples R China
10.Univ Chicago, Dept Organismal Biol & Anat, Chicago, IL USA
推荐引用方式
GB/T 7714		 Johnson-Ransom, Evan,Li, Feng,Xu, Xing,et al. Comparative cranial biomechanics reveal that Late Cretaceous tyrannosaurids exerted relatively greater bite force than in early-diverging tyrannosauroids[J]. ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY,2023:21.
APA Johnson-Ransom, Evan.,Li, Feng.,Xu, Xing.,Ramos, Raul.,Midzuk, Adam J..,...&Snively, Eric.(2023).Comparative cranial biomechanics reveal that Late Cretaceous tyrannosaurids exerted relatively greater bite force than in early-diverging tyrannosauroids.ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY,21.
MLA Johnson-Ransom, Evan,et al."Comparative cranial biomechanics reveal that Late Cretaceous tyrannosaurids exerted relatively greater bite force than in early-diverging tyrannosauroids".ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY (2023):21.

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来源：古脊椎动物与古人类研究所

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