Rare juvenile material constrains estimation of skeletal allometry in Gryposaurus notabilis (Dinosauria: Hadrosauridae)
文献类型：期刊论文
| 作者 | Mallon, Jordan C.5,6,7,8; Evans, David C.3,4; Zhang, Yuguang2; Xing, Hai1,2,7,8 |
| 刊名 | ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY
 |
| 出版日期 | 2022-07-06 |
| 页码 | 23 |
| ISSN号 | 1932-8486 |
| DOI | 10.1002/ar.25021 |
| 通讯作者 | Mallon, Jordan C.(jmallon@nature.ca) |
| 英文摘要 | In studying the skeletal allometry of any vertebrate, it is important to sample the ontogenetic extremes to ensure the accuracy of parameter estimation; this is particularly true for fossil taxa, where sampling of ontogenetic series is incomplete and sporadic. Previous studies have examined allometry in the skull of the duck-billed dinosaur Gryposaurus notabilis, but these did not include individuals smaller than similar to 65% the maximum known size (based on linear dimensions). Here, we report on the two smallest known examples of this species (a mostly complete skeleton and a partial skull), which are similar to 37% the known maximal size of G. notabilis. Osteohistology indicates that these represent individuals similar to 2 years of age. Allometric analysis demonstrates that most aspects of the skull of G. notabilis grew isometrically, although the height of the nasal arch grew with positive allometry. Early in the ontogeny of G. notabilis, the dentary teeth possessed secondary ridges, which were lost later in life. This finding has important bearing on hadrosaurid tooth taxonomy. The limb proportions of G. notabilis largely grew isometrically (or with weak negative allometry, at most), like some other hadrosaurids, suggesting that the species did not undergo a gait shift with increasing age (unless it occurred very early in ontogeny). We argue that the lack of significant locomotory performance compensation exhibited by young hadrosaurids helps to explain why they apparently formed small, mutualistic aggregations, presumably for protection from large predators. |
| WOS关键词 | PRINCE CREEK FORMATION ; LONG-BONE HISTOLOGY ; MAIASAURA-PEEBLESORUM ; POSTNATAL ONTOGENY ; CRANIAL ANATOMY ; GROWTH DYNAMICS ; ORNITHISCHIA ; ALBERTA ; SKULL ; PERFORMANCE |
| 资助项目 | Beijing Government ; Beijing Millions of Talents Project in the New Century[2019A41] ; Canadian Museum of Nature ; National Natural Science Foundation of China[41602006] ; Natural Science Foundation of Beijing Municipality[5174032] ; Natural Sciences and Engineering Research Council of Canada[RGPIN2018-06788] ; State Key Laboratory of Palaeobiology and Stratigraphy of the Nanjing Institute of Geology and Palaeontology[203120] |
| WOS研究方向 | Anatomy & Morphology |
| 语种 | 英语 |
| WOS记录号 | WOS:000821082500001 |
| 出版者 | WILEY |
| 资助机构 | Beijing Government ; Beijing Millions of Talents Project in the New Century ; Canadian Museum of Nature ; National Natural Science Foundation of China ; Natural Science Foundation of Beijing Municipality ; Natural Sciences and Engineering Research Council of Canada ; State Key Laboratory of Palaeobiology and Stratigraphy of the Nanjing Institute of Geology and Palaeontology |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/41004]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Mallon, Jordan C. |
| 作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing, Peoples R China 2.Beijing Museum Nat Hist, Beijing, Peoples R China 3.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON, Canada 4.Royal Ontario Museum, Toronto, ON, Canada 5.Carleton Univ, Dept Earth Sci, Ottawa, ON, Canada 6.Carleton Univ, Ottawa Carleton Geosci Ctr, Ottawa, ON, Canada 7.Canadian Museum Nat, Palaeobiol Sect, Ottawa, ON K1P 6P4, Canada 8.Canadian Museum Nat, Beaty Ctr Species Discovery, Ottawa, ON K1P 6P4, Canada |
| 推荐引用方式 GB/T 7714 | Mallon, Jordan C.,Evans, David C.,Zhang, Yuguang,et al. Rare juvenile material constrains estimation of skeletal allometry in Gryposaurus notabilis (Dinosauria: Hadrosauridae)[J]. ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY,2022:23. |
| APA | Mallon, Jordan C.,Evans, David C.,Zhang, Yuguang,&Xing, Hai.(2022).Rare juvenile material constrains estimation of skeletal allometry in Gryposaurus notabilis (Dinosauria: Hadrosauridae).ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY,23. |
| MLA | Mallon, Jordan C.,et al."Rare juvenile material constrains estimation of skeletal allometry in Gryposaurus notabilis (Dinosauria: Hadrosauridae)".ANATOMICAL RECORD-ADVANCES IN INTEGRATIVE ANATOMY AND EVOLUTIONARY BIOLOGY (2022):23. |
入库方式： OAI收割
来源：南京地质古生物研究所
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