Ge Sun

Ge Sun
Jilin University | JUT · College of Paleontology, Shenyang Normal Univ., China

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59
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Publications

Publications (59)
Article
Fossil leaves of Nelumbo jiayinensis sp. nov. are described from the Yong'ancun Formation (Santonian), Jiayin, Heilongjiang, Northeast China. This is the first report on fossil Nelumbo from the Upper Cretaceous of China. The leaves are simple with entire margins, orbicular or sub-orbicular in shape, with a peltate and symmetric lamina. The venation...
Article
Leaves of Dalembia jiayinensis sp. nov. are reported from the Santonian Yong'ancun Formation exposed along the Heilongjiang (Amur) River in Jiayin County, Northeast China. The leaves are compound, odd-pinnate, consisting of five leaflets. Leaflets are pinnately-lobed, trilobate or unlobed, elliptic, oblong, elliptic-rhomboid or ovate in outline, wi...
Conference Paper
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The central ridge in the Turpan Basin (Xinjiang, NW China) contains excellent exposures of Jurassic, Cretaceous, and Paleogene non-marine clastic sediments yielding invertebrate and vertebrate fossils. Between 2007 and 2012, expeditions of a Sino-German research group successfully prospected Middle and Late Jurassic sediments east of Shanshan count...
Article
Some new palynological fossils were newly found from the lower part of Upper Cretaceous Yong’ancun Formation in Jiayin, China, nearby the Heilongjiang (Amur) River. 43 genera and 54 species of palynomorphs, and three palynological sub-assemblages have been recently identified in the lower Yong’ancun Formation. The palynomorphs are dominated by gymn...
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Archaeamphora longicervia H. Q. Li was described as an herbaceous, Sarraceniaceae-like pitcher plant from the mid Early Cretaceous Yixian Formation of Liaoning Province, northeastern China. Here, a re-investigation of A. longicervia specimens from the Yixian Formation provides new insights into its identity and the morphology of pitcher plants clai...
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Dispersed tricolpate pollen of Pseudointegricorpus clarireticulatum (Samoil.) Takah. from the Upper Maastrichtian in Zeya-Bureya Basin, Amur (Heilongjiang) River area, Russian Far East/China has been studied with light and electron microscopy. Pollen size, pole outlines and the shape of equatorial projections show some variation within the species....
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The Middle and early Late Jurassic Qigu and Shishugou Formations of the southern and central Junggar Basin yielded teeth of theropods (Theropoda indet.), sauropods (Eusauropoda indet.), and stegosaurs. The dinosaur assemblage of the southern Junggar Basin is less diverse and is represented by smaller forms than in the central part of the basin. The...
Article
The new discovery of angiosperm remains in the Jehol Biota of northeastern China contributes to our understanding of the origin and early evolution of flowering plants. The earliest eudicot genus with reproductive organs, Leefructus, was recently documented from the Lower Cretaceous Yixian Formation at 125.8 to 122.6 million years ago (Ma), and was...
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Most turtles from the Middle and Late Jurassic of Asia are referred to the newly defined clade Xinjiangchelyidae, a group of mostly shell-based, generalized, small to mid-sized aquatic froms that are widely considered to represent the stem lineage of Cryptodira. Xinjiangchelyids provide us with great insights into the plesiomorphic anatomy of crown...
Conference Paper
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The Liuhuanggou locality within the Late Jurassic (Oxfordian) Qigu Formation in the southern Junggar Basin has produced a rich microvertebrate assemblage. The bonebed has yielded a large amount of bones and teeth of aquatic and terrestrial vertebrates, such as hybodontid sharks, actinopterygians, temnospondyles, lissamphibians, xinjiangchelyid turt...
Conference Paper
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Turtles are the most common vertebrate fossils in Middle to Late Jurassic deposits of the Turpan Basin, Xinjiang Autonomous Province, China. The most spectacular site is the mass locality of “Mesa Chelonia”, which is comprised of a single layer with an estimated number of more than a 1000 individuals. The deposition of this Konzentrat-Lagerstätte i...
Conference Paper
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In the Central Asian Turpan Basin, large areas of Mesozoic sediments are exposed which had seen very limited paleontological interest for a long time. Fieldwork conducted by the Sino-German Paleontological Cooperation Project in Middle to Late Jurassic fluvial and lacustrine sediments near the county of Shanshan (Xinjiang, NW China) has now vastly...
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A spectacular new terrestrial Konzentratlagerstätte is introduced from the Turpan Basin of Xinjiang, China that probably belongs to the late Middle Jurassic Qigu Formation. It contains a mass accumulation of "xinjiangchelyid" turtles preliminarily identified as Annemys sp. In the zone with the highest turtle concentration, complete and articulated...
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The current molecular systematics of angiosperms recognizes the basal angiosperms and five major angiosperm lineages: the Chloranthaceae, the magnoliids, the monocots, Ceratophyllum and the eudicots, which consist of the basal eudicots and the core eudicots. The eudicots form the majority of the angiosperms in the world today. The flowering plants...
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The Upper Triassic to Middle Jurassic strata are well exposed and basically continuous in the Junggar Basin of Xinjiang, Northwest China. The Upper Triassic strata include the Huangshanjie Formation (lacustrine facies mainly) and Haojiagou Formation (fluvial to fluvial-swamp facies). The Lower Jurassic consists of the coal-bearing Badaowan Formatio...
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The Junggar Basin in the Xinjiang Uygur Autonomous Region (NW China) comprises an almost continuous sequence of continental Mesozoic sediments. The basin was positioned at a latitude of about 45°N from the Permian onwards and existed almost during the entire Mesozoic. As such, it is well suited for studies on palaeoclimatic and palaeoenvironmental...
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This study focuses on the three-dimensional (3D) reconstruction of an Late Jurassic fossil forest based on a fossil assemblage located in the Shishugou Formation near Jiangjunmiao, north-eastern Junggar Basin, Xinjiang Uygur Autonomous Region, Northwest China. On the basis of tree stumps found in growth position together with published data on mega...
Article
The living fossil Ginkgo, a relict of a once dominant gymnosperm, existed and flourished early in the Mesozoic, but only a vague outline of its evolutionary history in the Tertiary has been unveiled. Here we describe a new species, Ginkgo jiayinensis sp. nov., from the Wuyun Formation of Jiayin, China, which is another well-established Tertiary spe...
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The genus Czekanowskia is an important member of the Mesozoic flora and is widespread in the Northern Hemisphere. In China, it is found mostly in Late Triassic and Early and Middle Jurassic sediments of North China. With the exception of a few specimens, all the reports of this genus from China have been based on gross leaf morphology. Abundant Cze...
Article
Using the stomatal index technique, the Campanian (Late Cretaceous) atmospheric carbon dioxide levels are estimated based on a sequence of fossil cuticles of Ginkgo adiantoides (Ung.) Heer. Ginkgo cuticles were sampled from 11 beds in the Taipinglinchang Formation at Jiayin, Heilongjiang Province, northeast China. In general, the regression functio...
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So far, the Jurassic co-occurrence of non-lissamphibian temnospondyls and early temnospondyl lissamphibians was known only for the Middle Jurassic Balabansai Svita in the Fergana Depression, Kyrgyzstan and the Peski Quarry near Moscow, Russia. Here we report the co-occurrence of non-lissamphibian temnospondyls and lissamphibians (salamanders) from...
Article
The last 10 years (1998–2007) were very productive and important in the study of early angiosperms in northeastern China. The new discoveries of the earliest well-documented records of angiosperms such as Archaefructus, as well as Hyrcantha decussata (= Sinocarpus decussatus), provided fresh knowledge for better understanding the primitive characte...
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During the Mesozoic era, Ginkgo leaves are diverse and widespread, especially in the Northern Hemisphere. Here we present three Ginkgo leaf types collected from the Middle Jurassic Zhaogou Formation of Shiguai coal-bearing basin in Inner Mongolia, China. These are described for the first time on the basis of their leaf morphology and well-preserved...
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The continuing study of early angiosperms from the Yixian Formation (≈125 Ma) of northeastern China has yielded a second early angiosperm genus. This report is a detailed account of this early flowering plant and recognizes earlier reports of similar fossils from Russia and China. Entire plants, including roots, stems, and branches terminating in f...
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A new dinosaur tracksite was discovered in a steeply inclined sandstone layer of the Middle Jurassic Sanjianfang Formation in the Shanshan area of the Turpan Basin. The site is the first record of dinosaur foot-prints from Xinjiang Province in northwestern China. More than 150 tridactyl theropod dinosaur footprints are preserved as positive hyporel...
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Fieldwork in the early Late Jurassic (Oxfordian) Qigu Formation of the Junggar Basin in Northwest China (Xinjiang Autonomous Region) produced teeth and mandibular fragments of a new docodont. The new taxon has a large "pseudotalonid" on the lower molars, and by retention of crest b-g exhibits closer affinities to Simpsonodon and Krusatodon from the...
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A new Middle Jurassic xinjiangchelyid turtle from China, Xinjiangchelys chowi sp. nov., is described from the Toutunhe Formation of the southern Junggar Basin, southwest of Urumchi (NW China). The material consists of a nearly complete carapace and the right hypoplastron. It shows important autapomorphies of the family Xinjiangchelyidae and the gen...
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A lower molar of a haramiyoid mammal is described from the Toutunhe Formation of Liuhuanggou near Urumqi in the southern Junggar Basin, Xinjiang, China. It is referred to Eleutherodon sp., otherwise exclusively known from the Upper Bathonian of England. It is the first record of the order Haramiyida from Asia and the first Mesozoic mammal described...
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A temnospondyl ilium from the uppermost Toutunhe Formation (Middle Jurassic, Callovian) of the southern Junggar Basin is described. Among the known temnospondyls it is very unusual in morphology because of its very long and slender shaft. It compares closely only to the ilium of one of the latest known trematosaurids from the Ladinian of southern G...
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A new dsungaripteroid pterosaur, Lonchognathosaurus acutirostris gen. et sp. nov., is erected for the anterior part of a skull from the Lower Cretaceous Lianmuxin Formation (Upper Tugulu Group) of Liuhonggou, near Urumqi, in the southern Junggar Basin (Xinjiang Uygur Autonomous Region, People's Republic of China). It is distinguished from other dsu...
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A new eucryptodiran turtle, Xinjiangchelys qiguensis sp. nov. from the Upper Jurassic (Oxfordian — ?Kimmeridgian) Qigu Formation of the southern Junggar Basin (north-west China) is described. The type material consists of a partial skeleton, including the complete carapace, plastron, nearly all cervical vertebrae, both scapulae, the pelvis and one...
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A new genus and species of a sinemydid turtle, Wuguia hutubeiensis, is described from the lowermost Hutubei Formation (Hauterivian - Barremian) of the Tugulu Group. It was found in the Haojiagou section near the Toutunhe river, southwest of Urumchi, in the southwestern Junggar Basin (Xinjiang Uygur Autonomous Region, People's Republic of China). Th...
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A new tritylodontid cynodont, Bienotheroides ultimus sp. nov., is described from the Upper Jurassic Shishugou Formation of Jiangjunmiao in the northeastern Junggar Basin of Xinjiang (NW China). The type consists of a partial skeleton, including teeth, a partial skull, and a considerable portion of the postcranium. It is identifiable as Bienotheroid...
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A new species of the sinemydid turtle genus Dracochelys, D. wimani n.sp., is described from the Lianmuxin Formation (Upper Tugulu Group) of Liuhonggou near Urumchi in the southwestern Junggar Basin (Xinjiang Uygur Autonomous Region, People' s Republic of China). The specimen consists of much of the carapace and plastron and some elements of the app...
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A diverse assemblage of fossil vertebrates, recently discovered in terrestrial Middle to Upper Jurassic sediments of the Toutunhe and Qigu Formations, includes hybodontiform sharks, palaeonisciform actinopterygians, temnospondyl amphibians, turtles, crocodiles and dinosaurs. The Toutunhe Formation is highly fossiliferous in its upper part. It yield...
Article
Early angiosperms from the Lower Cretaceous Chengzihe Formation exposed near the city of Jixi in Northeast China are reported here. Ten taxa are presented in this paper including two new genera (Zhengia, Xingxuephyllum), three new species (Jixia chengzihensis, Zhengia chinensis, Xingxuephyllum jixiense), and three taxa are emended (Asiatifolium ele...
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Archaefructaceae is proposed as a new basal angiosperm family of herbaceous aquatic plants. This family consists of the fossils Archaefructus liaoningensis and A. sinensis sp. nov. Complete plants from roots to fertile shoots are known. Their age is a minimum of 124.6 million years from the Yixian Formation, Liaoning, China. They are a sister clade...
Article
A complete Triassic-Jurassic transition is well documented in the Haojiagou valley section 40 km to the west of Urumqi Xinjiang, China. The results of the preliminary palynological study from the first field work with 13 samples reveal a well preserved microflora which confirm that the Hojiagou Formation belongs to the Concavisporites-Duplexisporit...

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