中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Reconstruction of the cranial musculature of the paraceratheriid rhinocerotoid Pappaceras meiomenus and inferences of its feeding and chewing habits

文献类型:期刊论文

作者Wang, Hai-Bing1,2; Bai, Bin1,2; Gong, Yan-Xin1,2; Meng, Jin1,3; Wang, Yuan-Qing1,2
刊名ACTA PALAEONTOLOGICA POLONICA
出版日期2017-06-01
卷号62期号:2页码:259-271
关键词Mammalia Perissodactyla Paraceratheriidae Pappaceras Meiomenus Chewing Eocene China
DOI10.4202/app.00336.2016
文献子类Article
英文摘要The paraceratheriid Pappaceras is the earliest unequivocal rhinocerotoid genus to date, for which the osteological morphology is relatively unique compared to other perissodactyls. Due to the poor preservation condition, paleobiological aspects of Pappaceras (or forstercooperiines), such as chewing and feeding behavior, still remain unknown. Under the Extant Phylogenetic Bracket, the cranial musculature of the newly erected Pappaceras meiomenus has been reconstructed using two-dimensional illustrations, drawings and interpretations of the position and general morphology of cranial muscles for which origins and insertions on the skull are visible. In this study, eight muscles are reconstructed, described and compared to the corresponding muscles known or inferred in other perissodactyls, including them. levator nasolabialis, the m. levator labii superior, the m. caninus, the m. zygomaticus, the m. masseter, the m. temporalis, the m. buccinator and the m. pterygoid. The reconstruction of the masticatory muscles suggests that Pappaceras meiomenus is strictly herbivorous, probably folivorous, with a primary component of vertical biting. The relatively well-developed m. pterygoid (particularly the m. pterygoideus medialis) indicates that Pappaceras meiomenus is similar to hyracodontids, having more advantages in rotary chewing than other non-hyracodontid rhinocerotoids. The configuration of basicranial features shows differentiation between non-hyracodontids and hyracodontids, demonstrating that the well-developed, specialized postglenoid process and the wide glenoid fossa, along with the postcotyloid process of the mandible, serve as a strong fulcrum during the power stroke in non-hyracodontids. Based on its rostral morphology, we suggest that Pappaceras meiomenus was a general browser. The morphology of its incisors and canines further indicate the ability to feed on hard plants, using the postulated puncture-crushing and grinding function.
WOS关键词EXTINCT RUMINANTS ; PERISSODACTYLA ; ANATOMY ; EOCENE ; FORSTERCOOPERIA ; OSTEOLOGY ; MAMMALIA ; MYOLOGY
WOS研究方向Paleontology
语种英语
WOS记录号WOS:000405064100004
资助机构National Basic Research Program of China(2012CB821904) ; Geological Survey Projects of China Geological Survey Bureau(1212011120142) ; National Science Foundation of China(41002009) ; Chinese Academy of Sciences ; China Scholarship Council (CSC)(201504910615)
源URL[http://124.16.247.212/handle/311034/7785]  
专题古脊椎动物与古人类研究所_图书馆1
古脊椎动物与古人类研究所_古哺乳动物研究室
作者单位1.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
3.Amer Museum Nat Hist, Div Paleontol, Cent Pk West & 79th St, New York, NY 10024 USA
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Wang, Hai-Bing,Bai, Bin,Gong, Yan-Xin,et al. Reconstruction of the cranial musculature of the paraceratheriid rhinocerotoid Pappaceras meiomenus and inferences of its feeding and chewing habits[J]. ACTA PALAEONTOLOGICA POLONICA,2017,62(2):259-271.
APA Wang, Hai-Bing,Bai, Bin,Gong, Yan-Xin,Meng, Jin,&Wang, Yuan-Qing.(2017).Reconstruction of the cranial musculature of the paraceratheriid rhinocerotoid Pappaceras meiomenus and inferences of its feeding and chewing habits.ACTA PALAEONTOLOGICA POLONICA,62(2),259-271.
MLA Wang, Hai-Bing,et al."Reconstruction of the cranial musculature of the paraceratheriid rhinocerotoid Pappaceras meiomenus and inferences of its feeding and chewing habits".ACTA PALAEONTOLOGICA POLONICA 62.2(2017):259-271.

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来源:古脊椎动物与古人类研究所

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