Dipodidae (Rodentia, Mammalia) from the Miocene of Damiao, Nei Mongol, China

doi:10.1007/s10914-024-09731-6

IVPP-IR

	Dipodidae (Rodentia, Mammalia) from the Miocene of Damiao, Nei Mongol, China
	Ma, Hai-Dan 1,3; Zhang, Zhao-Qun2,4 ; Bi, Shun-Dong 1
	2024-09-01
发表期刊	JOURNAL OF MAMMALIAN EVOLUTION
ISSN	1064-7554
卷号	31 期号:3 页码:30
通讯作者	Zhang, Zhao-Qun(zhangzhaoqun@ivpp.ac.cn) ; Bi, Shun-Dong(bishundong@ynu.edu.cn)
摘要	The rich micromammal fossils from Early, Middle, and Late Miocene horizons of the Damiao sequence in Nei Mongol provide an opportunity to study Miocene biostratigraphy and faunal turnover in Asia. In this study, we describe thirteen dipodid species from the Damiao sequence, including two new species, Sinozapus damiaoensis sp. nov. and Lophocricetus parvus sp. nov. Sinozapus damiaoensis sp. nov. is characterized by the metaloph connecting to the central hypocone on M1-M2, the absence of the anterior arm of the protoconid, and the posterior arm of the protoconid merging with the metaconid on m2. Lophocricetus parvus sp. nov. displays a set of transitional morphological traits between Heterosminthus and Lophocricetus. It resembles Heterosminthus in its small size, the presence of the mesocone and mesoloph on M1-M2, the vestigial pseudomesolophid, and the posterior crest of the protoconid on m1. Meanwhile, it has the characteristics of Lophocricetus, including the protostyle on M1 and the hypoconid-entoconid connection on the m1. These two new species represent the earliest records of their respective genera. The Damiao dipodid fossil records improve our understanding of Neogene dipodid diversity, and refine the biostratigraphic framework in the central Nei Mongol. The new fossil records reveal a shift from small, low-crowned, humid-adapted early taxa to ecologically diverse late Middle Miocene forms, including desert-adapted jerboas, indicating a trend towards regional aridification. Nonetheless, relict sicistines and zapodines suggest localized persistence of humid refugia within broader dry environments during the late Middle Miocene, which sheltered pliopithecids in the Mongolia Plateau.
关键词	Rodentia Taxonomy Biostratigraphy Paleoenvironment Asia
DOI	10.1007/s10914-024-09731-6
关键词[WOS]	INNER-MONGOLIA ; DIPODOIDEA ; OLIGOCENE ; CLIMATE ; STRATA ; FAUNA
收录类别	SCI
语种	英语
资助项目	Yunnan Fundamental Research Projects[202301AT070029] ; Yun-nan Revitalization Talent Support Program[202305AB350006] ; Academy of Finland and National Natural Science Foundation of China[41072004]
项目资助者	Yunnan Fundamental Research Projects ; Yun-nan Revitalization Talent Support Program ; Academy of Finland and National Natural Science Foundation of China
WOS研究方向	Evolutionary Biology ; Zoology
WOS类目	Evolutionary Biology ; Zoology
WOS记录号	WOS:001314953200001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/23903
专题	中国科学院古脊椎动物与古人类研究所
通讯作者	Zhang, Zhao-Qun; Bi, Shun-Dong
作者单位	1.Yunnan Univ, Ctr Vertebrate Evolutionary Biol, Sch Life Sci, Kunming 650091, Peoples R China 2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 3.Yuxi Normal Univ, Yuxi 653100, Peoples R China 4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Ma, Hai-Dan,Zhang, Zhao-Qun,Bi, Shun-Dong. Dipodidae (Rodentia, Mammalia) from the Miocene of Damiao, Nei Mongol, China[J]. JOURNAL OF MAMMALIAN EVOLUTION,2024,31(3):30.
APA	Ma, Hai-Dan,Zhang, Zhao-Qun,&Bi, Shun-Dong.(2024).Dipodidae (Rodentia, Mammalia) from the Miocene of Damiao, Nei Mongol, China.JOURNAL OF MAMMALIAN EVOLUTION,31(3),30.
MLA	Ma, Hai-Dan,et al."Dipodidae (Rodentia, Mammalia) from the Miocene of Damiao, Nei Mongol, China".JOURNAL OF MAMMALIAN EVOLUTION 31.3(2024):30.