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1. chinaXiv:202009.00050 [pdf]

Late Miocene micromammalian assemblage of Tuchengzi and its biochronological position in Neogene faunal sequence in central Nei Mongol, China

ZHANG Li-Min; DONG Wei; Ni Xi-Jun; LI Qiang
Subjects: Biology >> Zoology

Neogene strata rich in fossil mammals are well exposed in central Nei Mongol, China. Over a dozen mammalian faunas in chronological succession from Early Miocene to Early Pliocene were discerned in this region, and they built a fundamental part of the Neogene land mammal biochronological system in northern China. Tuchengzi was first recognized for producing abundant mammalian fossils during the Sino-Soviet Paleontological Expedition (SSPE) initiated in 1959. However, all unearthed fossils from the SSPE were either large- or middle-sized mammals, and small mammal fossils in the Tuchengzi Fauna were deficient for a long time. The composition and biochronological position of the Tuchengzi Fauna in the Neogene mammalian biochronological system in northern China was not particularly clear. The new fossils here reported are represented by 6 taxa of small mammals. Based on the co-occurrence of Lophocricetus grabaui, Sinocricetus zdanskyi, Prosiphneus licenti, Hansdebruijnia pusilla, and Moschus grandaevus, the age of the Tuchengzi Fauna is constrained to late Late Miocene or Baodean Chinese Land Mammal Age, slighter younger than the Baogeda Ula Fauna and older than the Ertemte Fauna. Judging from the fossil composition, the Tuchengzi Fauna possibly inhabited a forest-steppe mixed habitat during the late Late Miocene.

submitted time 2020-09-15 From cooperative journals:《古脊椎动物学报》 Hits4618Downloads424 Comment 0

2. chinaXiv:202004.00002 [pdf]

New material of Cervidae (Artiodactyla, Mammalia) from?Xinyaozi Ravine in Shanxi, North China

DONG Wei; BAI Wei-Peng; PAN Yue; LIU Wen-Hui
Subjects: Biology >> Zoology

Many cervid specimens were uncovered during the field exploration for Nihewan beds?at the beginning of the 1980s from Taijiaping, Shuichongkou and Dazhuangke localities along?Xinyaozi Ravine at Nangaoya Township of Tianzhen County, Shanxi Province in North China.?Recent studies on the cervid material identified seven species of Cervidae in total: Muntiacus?bohlini, Cervavitus cf. C. huadeensis, Axis shansius, Nipponicervus elegans, Elaphurus?davidianus predavidianus, E. bifurcatus from the Early Pleistocene deposits at Taijiaping and?Shuichongkou localities, and Cervus (Elaphus) elaphus from uncertain horizon at Dazhuangke. At?least the previous six species of cervids were from Nihewan Formation (Nihewanian or equivalent?to European middle and late Villafranchian), i.e. the Early Pleistocene, in Sangganhe Basin area.Cervavitus cf. C. huadeensis and A. shansius were survivors from the Late Neogene; M. bohlini,N. elegans, E. davidianus predavidianus and E. bifurcatus are new forms of the Early Pleistocene.If Dazhuangke horizon can be dated as those of Shuichongkou and Taijiaping localities, the appearance of elaphoid cervids could be traced back to the Early Pleistocene, and the evolution of?elaphoid antler would start from absence to presence of bez tine. The presence of Elaphurus and?Nipponicervus in mainland China and Japanese archipelago implies further that the sea level was?dropped down that these cervids could migrate from the mainland to the islands. The abundance?of folivorous cervid specimens in the Xinyaozi Ravine area indicates the existence of a certain?scale of forested environment in Sangganhe Basin area during the Early Pleistocene.

submitted time 2020-03-31 From cooperative journals:《古脊椎动物学报》 Hits8616Downloads977 Comment 0

3. chinaXiv:201906.00028 [pdf]

Cladistic approach on chronological relationship of the?Pleistocene mammalian faunas from China

DONG Wei; LIU Wen-Hui; BAI Wei-Peng
Subjects: Biology >> Zoology

There are many localities yielding the Pleistocene mammalian faunas in China. It?offers excellent material for the study of mammalian evolution, biochronology,paleoecology,paleoenvironment, paleozoogeography, etc. Faunal assemblage characters and taxonomic?extinction rates were widely used for determining the faunal ages in biochronology. Faunal binary?similarity coefficients sequenced according to Brainerd-Robinson’s rule and antiquity coefficients?were further developed methods in biochronology for dating the faunal ages. The faunal binary?similarity coefficients are based on the presence or absence of a taxon in a fauna. It is similar to?the presence or absence of a character of a species in cladistic analyses for phylogeny, and all?faunas have a special ancestor-descendant relationship. The present work is an attempt to find the?relationship of the faunas with cladistic methods by selecting three groups of faunas sequenced?by faunal binary similarity coefficients according to Brainerd-Robinson’s rule and antiquity?coefficients, to compare the results with different methods, and then to estimate the ages of the?faunas not yet dated by physical or chemical methods. The estimations are as follow: Gulongshan?in Dalian, Liaoning Province: 16–20 ka; Shanchengzi at Benxi, Liaoning Province: 20–30 ka;?Hualongdong at Dongzhi Man site, Anhui Province: 150–400 ka; Xinghuashan at Nanzhao Man?site, Henan Province: 150–400 ka; Donghe at Luonan Man site, Shaanxi Province: 500–700 ka; Bailongdong at Yunxi Man site, Hubei Province: 500–850 ka; Meipu at Yunxian, Hubei?Province: 500–850 ka; Mohui at Tiandong Man site, Guangxi Autonomous Region: 1.2–1.8 Ma;?Juyuandong at Liucheng, Guangxi Autonomous Region: 1.2–1.5 Ma; Chutoulang at Chifeng, Nei?Mongol Autonomous Region: 1.6–1.9 Ma; Renzidong at Fanchang, Anhui Province: 1.9–2.4 Ma.

submitted time 2019-06-11 From cooperative journals:《古脊椎动物学报》 Hits8059Downloads942 Comment 0

4. chinaXiv:201906.00097 [pdf]

Cladistic approach on chronological relationship of the?Pleistocene mammalian faunas from China

DONG Wei; LIU Wen-Hui; BAI Wei-Peng
Subjects: Biology >> Zoology

There are many localities yielding the Pleistocene mammalian faunas in China. It?offers excellent material for the study of mammalian evolution, biochronology,paleoecology,paleoenvironment, paleozoogeography, etc. Faunal assemblage characters and taxonomic?extinction rates were widely used for determining the faunal ages in biochronology. Faunal binary?similarity coefficients sequenced according to Brainerd-Robinson’s rule and antiquity coefficients?were further developed methods in biochronology for dating the faunal ages. The faunal binary?similarity coefficients are based on the presence or absence of a taxon in a fauna. It is similar to?the presence or absence of a character of a species in cladistic analyses for phylogeny, and all?faunas have a special ancestor-descendant relationship. The present work is an attempt to find the?relationship of the faunas with cladistic methods by selecting three groups of faunas sequenced?by faunal binary similarity coefficients according to Brainerd-Robinson’s rule and antiquity?coefficients, to compare the results with different methods, and then to estimate the ages of the?faunas not yet dated by physical or chemical methods. The estimations are as follow: Gulongshan?in Dalian, Liaoning Province: 16–20 ka; Shanchengzi at Benxi, Liaoning Province: 20–30 ka;?Hualongdong at Dongzhi Man site, Anhui Province: 150–400 ka; Xinghuashan at Nanzhao Man?site, Henan Province: 150–400 ka; Donghe at Luonan Man site, Shaanxi Province: 500–700 ka; Bailongdong at Yunxi Man site, Hubei Province: 500–850 ka; Meipu at Yunxian, Hubei?Province: 500–850 ka; Mohui at Tiandong Man site, Guangxi Autonomous Region: 1.2–1.8 Ma;?Juyuandong at Liucheng, Guangxi Autonomous Region: 1.2–1.5 Ma; Chutoulang at Chifeng, Nei?Mongol Autonomous Region: 1.6–1.9 Ma; Renzidong at Fanchang, Anhui Province: 1.9–2.4 Ma.

submitted time 2019-06-11 From cooperative journals:《古脊椎动物学报》 Hits8185Downloads884 Comment 0

5. chinaXiv:201711.01910 [pdf]

New material of the Early Pleistocene mammalian fauna from Chutoulang, Chifeng, eastern Nei Mongol, China and binary faunal similarity analyses

DONG Wei; ZHANG Li-Min; LIU Wen-Hui
Subjects: Biology >> Zoology

New specimens from a new locality at Chutoulang in eastern Nei Mongol were identified as Canis chihliensis, Coelodonta nihowanensis, Hipparion (Proboscidipparion) sinense, Equus sanmeniensis, Sus lydekkeri, Muntiacus cf. M. lacustris, Axis shansius, Eucladoceros boulei, Spirocerus cf. S. wongi and Bison palaeosinensis. They enriched the mammalian fauna of Chutoulang to 30 taxa together with the material from Dongliang, Dongcun Beigou and Dongcun Nangou localities. The mammalian fossils from these four localities are all from the same horizon and can be regarded as the same fauna, i.e. Chutoulang fauna. The composition of Chutoulang fauna is the closest to that of Nihewan (s.s.) by binary faunal similarity coefficients. The age of Chutoulang fauna is between those of Nihewan (s.s.) and Juyuandong at Liucheng according to Brainerd-Robinson’s sequence, extinction rates and antiquity coefficients. The numerical age of Chutoulang fauna is estimated between 1.4–1.6 Ma based on those of compared faunas. Carnivora are the most numerous in Chutoulang fauna with 11 taxa, but mostly the small sized ones. Perissodactyla and Artiodactyla make about half of the fauna. They are mostly large sized forms. The presence of numerous browsers or forest dwellers implies the existence of forest or woodland in Chutoulang area during that period. The presence of grazers and openland dwellers indicates the existence of larger area of grassland or steppes than that of woodland or forests. Most members of Chutoulang fauna are temperate habitat dwellers with a few cold-prone forms such as Ochotona and Coelodonta. The climate in Chutoulang area in the Early Pleistocene was thus similar to that of today. Chutoulang fauna is the most northeastern Early Pleistocene fauna in China and it can be recommended as a type site of the Early Pleistocene mammalian fauna in northeastern China.

submitted time 2017-11-07 From cooperative journals:《古脊椎动物学报》 Hits1889Downloads887 Comment 0

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