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New records of archaic ungulates from the Lower Eocene of Sanshui Basin, Guangdong, China
Mao, Fang-Yuan; Wang, Yuan-Qing; Li, Qian; Jin, Xun
2016-08-17
发表期刊HISTORICAL BIOLOGY
卷号28期号:6页码:787-802
文章类型Article
摘要Phenacolophidae is a group of little known archaic ungulates from the Late Paleocene to Middle Eocene of Asia. Its phylogenetic relationships with other altungulates have remained uncertain, partly because most phenacolophids are represented by poorly preserved material. Here we report a new phenacolophid, Sanshuilophus zhaoi gen. et sp. nov., from the Lower Eocene Huayong Formation of the Sanshui Basin, Guangdong, China. Although still fragmentary, the new specimens show that the new taxon is characterised by relatively large body size (except for Zaisanolophus), sub-molariform premolars, relatively higher bilophodont molars that lack the mesostyle, and tooth enamel microstructure with true prisms and typical Hunter-Schreger bands (HSB). With the new specimens and a review of the published phenacolophid material, we are able to provide an alternative identification for the tooth loci for the type specimen of Phenacolophus and further present an emended diagnosis for Phenacolophidae. The tooth morphology and enamel microstructure provide new evidence to support the notion that phenacolophids differ from species of Embrithopoda in having low-crown teeth, considerably slanting lophids, distinct paralophids and lacking the arsinoitheriid radial enamel. Phenacolophidae should not be included in Tethytheria but probably represent a stem group for altungulates, if not for all archaic ungulates.
关键词Mammalia Altungulata Phenacolophidae Sanshuilophus Guangdong Sanshui Basin
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1080/08912963.2015.1034120
关键词[WOS]ENAMEL MICROSTRUCTURE ; PLACENTAL MAMMALS ; TOOTH ENAMEL ; PALEOCENE ; PERISSODACTYLA ; EMBRITHOPODA ; PHYLOGENY ; EVOLUTION
收录类别SCI
语种英语
项目资助者Major Basic Research Projects of MST of China(2012CB821900) ; National Natural Science Foundation of China(41404022) ; Chinese Academy of Sciences(KZCX2-EW-106) ; Special Fund for Fossil Excavation and Preparation of Chinese Academy of Sciences
WOS研究方向Life Sciences & Biomedicine - Other Topics ; Paleontology
WOS类目Biology ; Paleontology
WOS记录号WOS:000373984900005
引用统计
文献类型期刊论文
条目标识符http://119.78.100.205/handle/311034/7058
专题中科院古脊椎所(2000年以后)
作者单位Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origin, Beijing, Peoples R China
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Mao, Fang-Yuan,Wang, Yuan-Qing,Li, Qian,et al. New records of archaic ungulates from the Lower Eocene of Sanshui Basin, Guangdong, China[J]. HISTORICAL BIOLOGY,2016,28(6):787-802.
APA Mao, Fang-Yuan,Wang, Yuan-Qing,Li, Qian,&Jin, Xun.(2016).New records of archaic ungulates from the Lower Eocene of Sanshui Basin, Guangdong, China.HISTORICAL BIOLOGY,28(6),787-802.
MLA Mao, Fang-Yuan,et al."New records of archaic ungulates from the Lower Eocene of Sanshui Basin, Guangdong, China".HISTORICAL BIOLOGY 28.6(2016):787-802.
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