KMS Institute of Vertebrate Paleontology and Paleoanthropology
| Temporal and phylogenetic evolution of the sauropod dinosaur body plan | |
| Bates, Karl T.1; Mannion, Philip D.2; Falkingham, Peter L.3; Brusatte, Stephen L.4; Hutchinson, John R.5; Otero, Alejandro6; Sellers, William I.7; Sullivan, Corwin8; Stevens, Kent A.9; Allen, Vivian5 | |
| 2016-03-01 | |
| 发表期刊 | ROYAL SOCIETY OPEN SCIENCE
 |
| 卷号 | 3期号:3 |
| 文章类型 | Article |
| 摘要 | The colossal size and body plan of sauropod dinosaurs are unparalleled in terrestrial vertebrates. However, to date, there have been only limited attempts to examine temporal and phylogenetic patterns in the sauropod bauplan. Here, we combine three-dimensional computational models with phylogenetic reconstructions to quantify the evolution of whole-body shape and body segment properties across the sauropod radiation. Limitations associated with the absence of soft tissue preservation in fossils result in large error bars about mean absolute body shape predictions. However, applying any consistent skeleton : body volume ratio to all taxa does yield changes in body shape that appear concurrent with major macroevolutionary events in sauropod history. A caudad shift in centre-of-mass (CoM) in Middle Triassic Saurischia, associated with the evolution of bipedalism in various dinosaur lineages, was reversed in Late Triassic sauropodomorphs. A craniad CoM shift coincided with the evolution of quadrupedalism in the Late Triassic, followed by a more striking craniad shift in Late Jurassic-Cretaceous titanosauriforms, which included the largest sauropods. These craniad CoM shifts are strongly correlated with neck enlargement, a key innovation in sauropod evolution and pivotal to their gigantism. By creating a much larger feeding envelope, neck elongation is thought to have increased feeding efficiency and opened up trophic niches that were inaccessible to other herbivores. However, we find that relative neck size and CoM position are not strongly correlated with inferred feeding habits. Instead the craniad CoM positions of titanosauriforms appear closely linked with locomotion and environmental distributions, potentially contributing to the continued success of this group until the end-Cretaceous, with all other sauropods having gone extinct by the early Late Cretaceous. |
| 关键词 | Biomechanics Computer Modelling Centre-of-mass Body Shape Phylogeny Gigantism |
| WOS标题词 | Science & Technology |
| DOI | 10.1098/rsos.150636 |
| 关键词[WOS] | MASS ; BIOMECHANICS ; ARCHOSAURS ; LOCOMOTION ; TRACKWAYS ; SKELETON ; POSTURE ; HABITS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Science & Technology - Other Topics |
| WOS类目 | Multidisciplinary Sciences |
| WOS记录号 | WOS:000377969200014 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.205/handle/311034/7034 |
| 专题 | 中科院古脊椎所（2000年以后） |
| 作者单位 | 1.Univ Liverpool, Inst Aging & Chron Dis, Dept Musculoskeletal Biol, Apex Bldg,6 West Derby St, Liverpool L7 8TX, Merseyside, England 2.Univ London Imperial Coll Sci Technol & Med, Dept Earth Sci & Engn, South Kensington Campus, London SW7 2AZ, England 3.Liverpool John Moores Univ, Sch Nat Sci & Psychol, James Parsons Bldg,Bryon St, Liverpool L3 3AF, Merseyside, England 4.Univ Edinburgh, Grant Inst, Sch GeoSci, Kings Bldg,James Hutton Rd, Edinburgh EH9 3FE, Midlothian, Scotland 5.Univ London, Royal Vet Coll, Struct & Mot Lab, Dept Comparat Biomed Sci, Hatfield AL9 7TA, Herts, England 6.Consejo Nacl Invest Cient & Tecn, Div Paleontol Vertebrados, Museo La Plata, Paseo Bosque S-N,B1900FWA, La Plata, Buenos Aires, Argentina 7.Univ Manchester, Fac Life Sci, Michael Smith Bldg,Oxford Rd, Manchester M13 9PT, Lancs, England 8.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, 142 Xizhimenwai Dajie, Beijing 100044, Peoples R China 9.Univ Oregon, Dept Comp & Informat Sci, Eugene, OR 97403 USA |
| 推荐引用方式 GB/T 7714 | Bates, Karl T.,Mannion, Philip D.,Falkingham, Peter L.,et al. Temporal and phylogenetic evolution of the sauropod dinosaur body plan[J]. ROYAL SOCIETY OPEN SCIENCE,2016,3(3). |
| APA | Bates, Karl T..,Mannion, Philip D..,Falkingham, Peter L..,Brusatte, Stephen L..,Hutchinson, John R..,...&Allen, Vivian.(2016).Temporal and phylogenetic evolution of the sauropod dinosaur body plan.ROYAL SOCIETY OPEN SCIENCE,3(3). |
| MLA | Bates, Karl T.,et al."Temporal and phylogenetic evolution of the sauropod dinosaur body plan".ROYAL SOCIETY OPEN SCIENCE 3.3(2016). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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