Yuan Wang

Yuan Wang
Paleontological Museum of China, Beijing, China

PhD, Research Professor

About

91
Publications
23,823
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3,145
Citations
Citations since 2017
16 Research Items
1014 Citations
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
2017201820192020202120222023050100150200
Additional affiliations
July 1994 - present
Chinese Academy of Science

Publications

Publications (91)
Article
We report a new genus and species of fossil lizard, Moqisaurus pulchrum gen. et sp. nov., from the Early Cretaceous Moqi Fauna of eastern Inner Mongolia, China. The new lizard differs from other Late Jurassic and Early Cretaceous taxa in the combination of an interdigitated frontoparietal suture, paired frontals and parietals, absence of angular pr...
Article
Monitor lizards (genus Varanus ) are today distributed across Asia, Africa and Australasia and represent one of the most recognizable and successful lizard lineages. They include charismatic living species like the Komodo dragon of Indonesia and the even larger extinct Varanus prisca ( Megalania ) of Australia. The fossil record suggests that livin...
Article
New fossil-bearing horizons at the Gezidong and Jiaxikou localities, eastern Inner Mongolia, referred to as the Moqi fossil bed, yield a diverse fossil assemblage coined herein as “Moqi Fauna”. The Moqi Fauna provides important insights into the evolution of some vertebrate clades, such as frogs and salamanders, and their Early Cretaceous diversifi...
Article
The carpus (wrist) of fossil frogs is rarely preserved, because it consists of tiny skeletal elements that ossify only during the postmetamorphic life stage. The structure of the carpus is comparatively well-known in the temnospondyl ancestors of the Anura, but its changes during the transition to their anuran descendents are unknown due to the abs...
Article
Full-text available
Lacustrine deposits of Juro-Cretaceous age in northeastern China have yielded some of the best-preserved fossils of early crown salamanders. One of those taxa, Chunerpeton tianyiense, has been considered as a crown or stem member of the family Cryptobranchidae, significant for implying a long evolutionary history for cryptobranchids and for calibra...
Article
Choristoderes are a small clade of freshwater aquatic reptiles known from deposits of Jurassic–Miocene age. They show their greatest diversity in the Early Cretaceous of Asia, with seven recorded genera including longirostrine and brevirostine taxa, long- and short-necked taxa, and representatives of both neochoristoderes and non-neochoristoderes....
Article
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The Jehol Biota is an Early Cretaceous terrestrial fossil assemblage of paramount significance, and its core distribution areas are western Liaoning, northern Hebei, and southeastern Inner Mongolia. Despite with a research history of more than 150 years, it started yielding important fossils until early 1990s, which include feathered dinosaurs, ear...
Article
The Jurassic record of lizards in eastern Asia is poor by comparison with that of the Cretaceous. In China, to date, the only confirmed records from this period are an armoured lizard from Shishugou, Xinjiang Uygur Autonomous Region, of probable Oxfordian age, and two unnamed juvenile specimens from the slightly older, Callovian-Oxfordian, Daohugou...
Article
Choristodera are freshwater aquatic reptiles known from the Middle Jurassic to the Miocene. Their fossil record shows a peak in diversity in the Early Cretaceous of eastern Asia, most notably in the Jehol Biota of China but also in Japan and Mongolia. However, until now, the only Jurassic records from Asia have been rare disarticulated elements fro...
Data
The original data of invasive breast cancer patients in 1995–2000, 2010 and 2015. There are seven variables included into analyses:. The variable “datayear” is defined as the year of diagnosis; “number” is the patients’ ID number; “age” is the age of patients; “findout” is the detection mode of breast cancer, which includes self-detected (0) and sc...
Article
The lizard genus Bainguis was originally described from the Upper Cretaceous of Mongolia and attributed to Anguimorpha. The same genus was later reported from the Upper Cretaceous of Bayan Mandahu, Nei Mongol, China on the basis of a partial skeleton showing some similarities in osteoderm morphology. Re-examination of this specimen with the aid of...
Article
A new frog with pelobatoid affinities is described from the lower Eocene of southern China based on 11 individuals at different developmental stages. Comparative analysis reveals that this anuran shares osteological characters with the rather diverse family Megophryidae. In particular, intervertebral discs are present between the anterior vertebral...
Article
Although both the Yanliao and Jehol vertebrate assemblages are known for exceptional preservation of feathered dinosaurs, mammals, pterosaurs, lizards, salamanders, and fish, the Early Cretaceous Jehol Biota also contains birds, choristoderes, frogs, and turtles that are currently lacking in the Jurassic Yanliao Biota. The vertebrate assemblages of...
Article
Yabeinosaurus was the first lizard genus described from the Early Cretaceous Jehol Biota of China. The holotype of the type species, Y. tenuis, is an immature skeleton but it has been lost for decades. A second species, Y. youngi, was erected based on another immature skeleton and is distinguished by its longer, more gracile limbs. In 2001, a juven...
Article
Full-text available
The northeastern Chinese Yanliao Biota (sometimes called the Daohugou Biota) comprises numerous, frequently spectacular fossils of non-marine organisms, occurring in Middle-Upper Jurassic strata in western Liaoning, northern Hebei, and southeastern Inner Mongolia. The biota lasted for about 10 million years, divided into two phases: the Bathonian-C...
Article
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Although the Late Cretaceous lizard fauna of China and Mongolia is relatively well-known, information on Paleocene lizards from the same region is currently limited. Several species of lizards have been reported from the Paleocene Wanghudun and Doumu formations of Qianshan Basin on the basis of fragmentary specimens, namely Agama sinensis Hou, 1974...
Article
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Polydactyly and other malformations such as supernumerary limbs are relatively common in extant salamander populations. They generally result from biotic or abiotic disruption of normal regeneration following non-lethal predator or conspecific bite injury. Here, we record, for the first time, similar malformations in a fossil salamander. Fourteen s...
Article
Full-text available
The Early Cretaceous Jehol Biota of northeastern China has become famous over the last two decades as a source of feathered avialan and non-avialan theropods, preserved alongside an array of other fossil vertebrates, invertebrates, and plants. Still more recently, a rich assemblage referred to in this paper as the Daohugou Biota has begun to emerge...
Article
Full-text available
To date, the Lower Cretaceous Jehol Group of western Liaoning, China has yielded five monotypic genera of anurans, including Liaobatrachus grabaui, Callobatrachus sanyanensis, Mesophryne beipiaoensis, Dalianbatrachus mengi, and Yizhoubatrachus macilentus. However, the validity and distinctness of these taxa have been questioned. We provide a compre...
Data
Background: To date, the Lower Cretaceous Jehol Group of western Liaoning, China has yielded five monotypic genera of anurans, including Liaobatrachus grabaui, Callobatrachus sanyanensis, Mesophryne beipiaoensis, Dalianbatrachus mengi, and Yizhoubatrachus macilentus. However, the validity and distinctness of these taxa have been questioned.
Data
Morphometric data of Jehol anurans. Abbreviation: SVL, snout-vent length; PsC, presacral column; LS, length of skull; LtS, width of skull; H, humerus; Ru, radioulna; F, femur; Tf, tibiofibula; Fb, fibulare; I, ilium; U, Urostyle; Mt4, metatarsal IV. (DOC)
Data
Taxon-character data matrix used in our phylogenetic analysis. Character description is as in Gao and Wang (2001) and Wang (2006) with amendments mentioned in the Material and Method section. Letters in bold indicate the character states that are rescored in this paper. The letters in the matrix represent the states shown below: A, (0&1); B, (1&2);...
Article
Full-text available
Specimens of a single but currently undetermined species of the anuran genus Liaobatrachus from the Lower Cretaceous of northeast China, including four articulated skeletons preserved on a single block of sediment plus two skulls and several additional adult skeletons on other slabs, illustrate post-metamorphic developmental stages from early juven...
Article
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Conchostracans and corixids are part of the diet of extant salamanders, an ecologically important fact in a lacustrine environment. Here we report their discovery in the guts of the aquatic Jurassic salamanders Jeholotriton paradoxus and Chunerpeton tianyiensis, formerly abundant at Daohugou, Ningcheng County, Inner Mongolia, China. This reveals so...
Article
Full-text available
Although viviparity is most often associated with mammals, roughly one fifth of extant squamate reptiles give birth to live young. Phylogenetic analyses indicate that the trait evolved more than 100 times within Squamata, a frequency greater than that of all other vertebrate clades combined. However, there is debate as to the antiquity of the trait...
Article
The early middle Miocene biota from the Shanwang locality in eastern China is one of the most diverse and well preserved in the world. This overall richness contrasts with its low diversity of anuran amphibians. The most abundant anurans are representatives of the family Ranidae, which remains the dominant group in the extant anuran fauna of China....
Article
Full-text available
In the last twenty years, the extraordinary discoveries of vertebrate fossils from the Jehol Biota not only have important implications for studying the evolution of major Mesozoic vertebrate groups, their paleobiostratigraphy and paleoenvironmentology, but also provide critical evidence for understanding the biodiversity changes of the Early Creta...
Article
Full-text available
The Early Cretaceous Jehol Biota of China includes seven named lizard taxa: Yabeinosaurus tenuis and Dalinghosaurus longidigitus; the gliding Xianglong; more fragmentary remains referred to the genera Pachygenys and Mimobecklesisaurus; and the undiagnostic juvenile skeletons Jeholosaurus and Liaoningolacerta. Here we describe new lizard remains fro...
Article
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New fossil mammal materials found in the upper Lingcha Formation of the Hengyang Basin, Hunan, China, include a complete skull of Hapalodectes hetangensis and a taxon new to the fauna, Dissacus zengi, n. sp. H. hetangensis is the morphologically least derived species of the genus and currently is the earliest known record of the genus. D. zengi, n....
Article
Recent discoveries of well-preserved Late Jurassic and Early Cretaceous salamander fossils from China are helping to resolve highly controversial aspects of caudate phylogeny. Here we report on a new Early Cretaceous salamander, Regalerpeton weichangensis gen. et sp. nov., from the Huajiying Formation in Hebei Province, China. This specimen is char...
Article
Full-text available
A fossil salamander is described based on specimens from a Lower Cretaceous deposit near Ningcheng, Inner Mongolia, China. Recently reported as Jeholotriton paradoxus, this form represents a neotenic salamander as indicated by larval features such as external gills, tooth-bearing coronoids, pterygoids with anteromedially oriented anterior processes...
Article
Full-text available
Lizards are now relatively well known from the Jehol Group of northeastern China, seven taxa having been named from the group or equivalent horizons. Here we describe a lizard specimen from a fossil horizon at Daohugou of Ningcheng, Nei Mongol, which predates the Yixian Formation of the Jehol Group. This is the second lizard from this locality. Com...
Article
Full-text available
Lizards are now relatively well known from the Jehol Group of northeastern China, seven taxa having been named from the group or equivalent horizons. Here we describe a lizard specimen from a
Book
No other single volume reference to the Jehol site and its fossils exists and nowhere is there such a collection of fine photos of the fossils concerned. This book has pieced together the most up-to-date information on the Jehol Biota, a place that has shown the world some of the most astonishing fossil finds including the first complete skeleton o...
Article
Full-text available
Lizards are now relatively well known from the Yixian Formation of northeastern China. In this study, we describe a juvenile lizard from a fossil horizon at Daohugou, Inner Mongolia. These beds predate the Yixian Formation, and are probably Late Jurassic or earliest Cretaceous in age. The new specimen thus documents the first lizard material from t...
Article
Full-text available
Many fossil taxa are known only from single specimens, making it difficult to gauge levels of intraspecific, and particularly ontogenetic, variation. Here we report on an aggregation of the Early Cretaceous lizard Dalinghosaurus longidigitus from deposits of the Yixian Formation, China. A single block from the Lujiatun Bed contains parts of at leas...
Article
Full-text available
Many fossil taxa are known only from single specimens, making it difficult to gauge levels of intraspecific, and particularly ontogenetic, variation. Here we report on an aggregation of the Early Cretaceous lizardDalinghosaurus longidigitus from deposits of the Yixian Formation, China. A single block from the Lujiatun Bed contains parts of at least...
Article
A disarticulated partial skeleton of a juvenile anuran is reported from the Lower Cretaceous Jiufotang Formation, Jehol Group, in Liaoning Province, China. The individual has a premaxilla with a tall, wide bifurcate alary process and a well-defined palatine process; a maxilla without pre- or postorbital processes; and no contact between the squamos...
Article
Full-text available
Abundant well−preserved salamander fossils have recently been recovered from localities across northeastern China. Panger− peton sinensis gen. et sp. nov. is represented by a nearly complete skeletal impression of a postmetamorphosed salamander from the Late Jurassic/Early Cretaceous locality of Wubaiding, Liao− ning Province. It is characterised b...
Article
Full-text available
Abundant well-preserved salamander fossils have recently been recovered from localities across northeastern China. Pangerpeton sinensis gen. et sp. nov. is represented by a nearly complete skeletal impression of a postmetamorphosed salamander from the Late Jurassic/Early Cretaceous locality of Wubaiding, Liaoning Province. It is characterised by a...
Article
Full-text available
The lizard genus Yabeinosaurus was originally described more than 60 years ago from deposits of the Early Cretaceous Jehol Group of northeastern China. Its morphology and phylogenetic position have remained enigmatic for several reasons, not least the inaccessibility of the type and figured material, now lost, and the immaturity of all previously d...
Article
Full-text available
The Early Cretaceous lizard genus Dalinghosaurus from the Yixian Formation of Liaoning, China, was originally de− scribed on the basis of a partial postcranial skeleton characterised by extremely long slender hind feet and a long tail. The skull has remained unknown and the systematic position is undetermined. Here we describe the skeletal anatomy...
Article
Full-text available
Recent fieldwork has extended the distribution of the Daohugou Bed deposits from the Daohugou Village to its several neighboring areas. The fossil-bearing Daohugou deposits uncomformably overlie complex bedrocks, and comprise three major parts. The red shales in the lower part were misidentified as belonging to the Tuchengzi Formation. Field excava...
Article
Full-text available
The stereospondyl amphibians were distributed worldwide during the late Paleozoic and early Mesozoic, but have been poorly documented in China. Only fragmentary fossils have been reported from the northern part of China (Sun et al., 1992), and the two named taxa of Chinese Triassic stereospondyls, ‘Parotosaurus’ turfanensis (see Young, 1966) and Bo...
Article
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SYNOPSIS The lizard genus Yabeinosaurus was originally described more than 60 years ago from deposits of the Early Cretaceous Jehol Group of northeastern China. Its morphology and phylogenetic position have remained enigmatic for several reasons, not least the inaccessibility of the type and figured material, now lost, and the immaturity of all pre...
Article
Full-text available
SYNOPSIS The lizard genus Yabeinosaurus was originally described more than 60 years ago from deposits of the Early Cretaceous Jehol Group of northeastern China. Its morphology and phylogenetic position have remained enigmatic for several reasons, not least the inaccessibility of the type and figured material, now lost, and the immaturity of all pre...
Article
Full-text available
Abstract Three anurans (Callobatrachus sanyanensis, Liaobatrachus grabaui, Mesophryne beipiaoensis) and six urodeles (Laccotriton subsolanus, Liaoxitriton zhongjiani, Jeholotriton paradoxus, Sinerpeton fengshanensis, Chunerpeton tianyiensis, Liaoxitriton daohugouensis) are reported from the late Mesozoic tuff‐interbedded lacustrine deposits (mostly...
Article
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The skull of living crocodylians is highly solidified and the jaw closing muscles are enlarged, allowing for prey capture by prolonged crushing between the jaws. Living species are all semi-aquatic, with sprawling limbs and a broad body that moves mainly from side-to-side; however, fossils indicate that they evolved from terrestrial forms. The most...
Article
Full-text available
The Lingcha Formation of the Hengyang Basin, Hunan, China, is one of two currently known sites thought to preserve sedimentary rocks spanning the Paleocene- Eocene boundary in Asia. The formation includes two fossiliferous intervals: The upper, yielding about 12 mammalian species, and the lower, yielding one mammalian and one reptilian species. To...
Article
Full-text available
A profound faunal reorganization occurred near the Paleocene/Eocene boundary, when several groups of mammals abruptly appeared on the Holarctic continents. To test the hypothesis that this event featured the dispersal of groups from Asia to North America and Europe, we used isotope stratigraphy, magnetostratigraphy, and quantitative biochronology t...
Article
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We report new 40Ar÷39Ar dating results obtained from total fusion and incremental-heating analyses of sanidine and biotite from three tuffs found interbedded within the fossil-bearing deposits of Liaoning, northeast China. The first is a new sample of the Bed 6 Sihetun tuff from the Yixian Formation, previously dated by our team as middle Early Cre...
Article
Full-text available
Two Jurassic–Cretaceous anurans are described based on well-preserved specimens from the lower part of the Yixian Formation, western Liaoning Province, northeastern China. One specimen, from the Heitizigou site, documents a new genus and species, and the second, from the Sihetun site, is the holotype and only known specimen for the recently named C...
Article
Full-text available
A fairly well-preserved specimen of a new primitive mammal,Repenomamus robustus gen. et sp. nov., has been described from the Yixian Formation (Lower Cretaceous), western Liaoning, China. This animal has several derived characteristics, such as well-developed dentary/squamosal articulation, reduced number of tooth, differentiation of premolars and...
Conference Paper
Full-text available
Mesozoic lissamphibians have been discovered from the Upper Jurassic/Lower Cretaceous of western Liaoning, southeastern Nei Mongol and northern Hebei of China. Most of them were representative of the famous endemic Jehol Biota distributed in East Asia. These findings, including the anurans Callobatrachus sanyanensis, Liaobatrachus grabaui and the u...
Chapter
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Article
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The ancient lake beds of the lower part of the Yixian Formation, Liaoning Province, northeastern China, have yielded a wide rangeof well-preserved fossils: the `feathered' dinosaurs Sinosauropteryx, Protarchaeopteryx and Caudipteryx, the primitive birds Confuciusornis and Liaoningornis, the mammal Zhangheotherium and the reportedly oldest flowering...
Article
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Based on a superbly preserved skeleton, a new anuran taxon has been named and described from the Yixian Formation (Upper Jurassic/Lower Cretaceous), Liaoning Province, northeastern China. This discovery documents the first discoglossid fossil from China, the earliest record of the group in Asia, and the only second Mesozoic discoglossid known from...