Reinterpretation of a previously described Jehol bird clarifies early trophic evolution in the Ornithuromorpha

doi:10.1098/rspb.2017.2494

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	Reinterpretation of a previously described Jehol bird clarifies early trophic evolution in the Ornithuromorpha
	Zheng, Xiaoting 1,2; O'Connor, Jingmai K.3; Wang, Xiaoli 1,2; Wang, Yan 1,2; Zhou, Zhonghe3
	2018-01-31
发表期刊	PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
ISSN	0962-8452
卷号	285 期号:1871 页码:10
文章类型	Article
摘要	STM35-3 from the Yixian Formation is the only Early Cretaceous ornithuromorph preserving direct evidence of granivory. The crop contains numerous seeds and the preservation of gastroliths presumably within the ventriculus indicates this diet was paired with the presence of a gastric mill as in living granivorous birds. STM35-3 was originally referred to Hongshanornis longicresta, member of a diverse clade of small, basal ornithuromorphs with elongate hind limbs known as the Hongshanornithidae. Hindlimb proportions suggest that hongshanornithids were wading birds, an ecological inference somewhat in conflict with direct evidence suggesting Hongshanornis fed on seeds. However, close inspection of STM35-3 reveals that the specimen represents a new species not closely related to hongshanornithids, distinguished by large forelimbs that exceed the length of the hindlimbs, robust and narrow coracoids, and a delicate edentulous rostrum. By contrast, all hongshanornithids have hindlimbs that far exceed the length of the forelimbs, coracoids with wide sternal margins, and small teeth throughout the upper and lower jaws. Reinterpretation of this new taxon, Eogranivora edentulata gen. et sp. nov, helps to clarify trophic driven patterns of tooth loss within the Ornithuromorpha. Apparent loss of the hallux may represent the first such occurrence in a Mesozoic bird and suggests a highly terrestrial lifestyle.
关键词	Mesozoic Jehol Diet Trophic Patterns Tooth Loss
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
DOI	10.1098/rspb.2017.2494
关键词[WOS]	CHINA ; AVES ; PATTERNS ; BIOTA
收录类别	SCI
语种	英语
项目资助者	National Natural Science Foundation of China(41688103 ; 41472023 ; 41372014 ; 41402017)
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Biology ; Ecology ; Evolutionary Biology
WOS记录号	WOS:000423774700024
出版者	ROYAL SOC
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/8720
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	O'Connor, Jingmai K.
作者单位	1.Linyi Univ, Inst Geol & Paleontol, Linyi 276000, Shandong, Peoples R China 2.Tianyu Nat Hist Museum Shandong, Pingyi 273300, Shandong, Peoples R China 3.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xiaoting,O'Connor, Jingmai K.,Wang, Xiaoli,et al. Reinterpretation of a previously described Jehol bird clarifies early trophic evolution in the Ornithuromorpha[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2018,285(1871):10.
APA	Zheng, Xiaoting,O'Connor, Jingmai K.,Wang, Xiaoli,Wang, Yan,&Zhou, Zhonghe.(2018).Reinterpretation of a previously described Jehol bird clarifies early trophic evolution in the Ornithuromorpha.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,285(1871),10.
MLA	Zheng, Xiaoting,et al."Reinterpretation of a previously described Jehol bird clarifies early trophic evolution in the Ornithuromorpha".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 285.1871(2018):10.

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