Endocranial morphology of three early-diverging ceratopsians and implications for the behavior and the evolution of the endocast in ceratopsians
文献类型：期刊论文
| 作者 | Hu, Jinfeng1; Xu, Xing2,3; Zhao, Qi2; He, Yiming4; Forster, Catherine A.5; Han, Fenglu1 |
| 刊名 | PALEOBIOLOGY
 |
| 出版日期 | 2024-10-30 |
| 页码 | 13 |
| ISSN号 | 0094-8373 |
| DOI | 10.1017/pab.2024.25 |
| 通讯作者 | Han, Fenglu(hanfl@cug.edu.cn) |
| 英文摘要 | Ceratopsian dinosaurs underwent great changes, including a shift of locomotion mode, enlarged horns and frills, and increased body size. These changes occur alongside the evolution of endocranial morphology and physiology such as the size and shape of the flocculus, hearing range, olfactory ratio, and the reptile encephalization quotient (REQ). However, the evolution of endocranial structures in early ceratopsians is still unclear because of a lack of information on the earliest ceratopsians. Here, we reconstructed the endocasts of three early-diverging ceratopsians including the Late Jurassic Yinlong, and the Early Cretaceous Liaoceratops and Psittacosaurus. These ceratopsians display obvious flocculi, large and separate olfactory bulbs, long and high anterior semicircular canals, and relatively long cochlear ducts. In the evolution of the earliest ceratopsians to early neoceratopsians, changes include the increasing size of the flocculus (which is reduced or absent in late-diverging ceratopsids), the attenuation of the semicircular canals, and the heightening of the anterior semicircular canal (which is shortened in late-diverging ceratopsids). The endocranial structures suggest early-diverging ceratopsians had a higher olfactory acuity and were adapted to hearing higher frequencies than late-diverging ceratopsians. Furthermore, the REQ suggests that Yinlong and Psittacosaurus were more highly encephalized than late-diverging ceratopsians and most extant reptiles. The angle of the lateral semicircular canal suggests that heads in ceratopsians display a transition from a forward posture to a more downward posture. Our new findings are significant for understanding the physiological changes during ceratopsian evolution and also have implications for the evolution of physiology in extant tetrapods. |
| WOS关键词 | LARGE MAMMALS ; HEAD POSTURE ; INNER-EAR ; BODY-MASS ; ANATOMY ; NEUROANATOMY ; ORIENTATION ; REPTILES ; HEARING ; ACUITY |
| 资助项目 | National Natural Science Foundation of China[41972021] ; National Natural Science Foundation of China[42288201] ; National Natural Science Foundation of China[42372036] ; National Natural Science Foundation of China[42072008] ; National Natural Science Foundation of China[42272020] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology ; Evolutionary Biology ; Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:001345997500001 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/44503]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Han, Fenglu |
| 作者单位 | 1.China Univ Geosci, Sch Earth Sci, Wuhan, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing, Peoples R China 3.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Kunming, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjiang Museum Paleontol, Nanjing, Peoples R China 5.George Washington Univ, Dept Biol Sci, Washington, DC USA |
| 推荐引用方式 GB/T 7714 | Hu, Jinfeng,Xu, Xing,Zhao, Qi,et al. Endocranial morphology of three early-diverging ceratopsians and implications for the behavior and the evolution of the endocast in ceratopsians[J]. PALEOBIOLOGY,2024:13. |
| APA | Hu, Jinfeng,Xu, Xing,Zhao, Qi,He, Yiming,Forster, Catherine A.,&Han, Fenglu.(2024).Endocranial morphology of three early-diverging ceratopsians and implications for the behavior and the evolution of the endocast in ceratopsians.PALEOBIOLOGY,13. |
| MLA | Hu, Jinfeng,et al."Endocranial morphology of three early-diverging ceratopsians and implications for the behavior and the evolution of the endocast in ceratopsians".PALEOBIOLOGY (2024):13. |
入库方式： OAI收割
来源：南京地质古生物研究所
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