Early Jurassic palaeoclimate in Southwest China and its implications for dinosaur fossil distribution

Supplementary material to "Early Jurassic climate and atmospheric CO<sub>2</sub> concentration in the Sichuan paleobasin, Southwest China"

10.5194/cp-2020-35-supplement ◽

2020 ◽

Author(s):

Xianghui Li ◽

Jingyu Wang ◽

Troy Rasbury ◽

Min Zhou ◽

Zhen Wei ◽

...

Keyword(s):

Southwest China ◽

Early Jurassic ◽

Supplementary Material

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Early Jurassic climate and atmospheric CO<sub>2</sub> concentration in the Sichuan paleobasin, Southwest China

10.5194/cp-2020-35 ◽

2020 ◽

Author(s):

Xianghui Li ◽

Jingyu Wang ◽

Troy Rasbury ◽

Min Zhou ◽

Zhen Wei ◽

...

Keyword(s):

Southwest China ◽

Seawater Temperature ◽

Dynamic Environment ◽

Co2 Concentration ◽

Flood Plain ◽

Early Jurassic ◽

Arid Climate ◽

Humid Climate ◽

Pedogenic Carbonates ◽

Terrestrial Sediments

Abstract. Unlike marine archives, terrestrial sediments show more complicated and dynamic environment and climate. This work presents new results of climate-sensitive sediment observation and carbon-oxygen isotope analyses of lacustrine and pedogenic carbonates for the Early Jurassic Ziliujing Formation from the grand Sichuan paleobasin (GSB), Southwest China. Lithofacies analysis indicates calcisols were widespread in riverine and flood plain facies. Climate–sensitive sediments and carbon-oxygen isotopes with palynofloral assemblages manifest that an overall (semi-) arid climate dominated the GSB; and that it became drier through time, accompanied by occasional evaporites in the Toarcian. This climate pattern is similar with the arid climate in Colorado Plateau, western America, but distinct from the relatively warm-humid climate in North China and northern Gondwanaland in Southern Hemisphere. The estimated Early Jurassic atmospheric CO2 concentration (pCO2) from carbon isotopes of pedogenic carbonates shows a range of 980–2610 ppmV (~ 3.5–10 times the pre-industrial value) with a mean 1660 ppmV. Three phases of pCO2 (the Sinemurian 1500–2000 pmV, the Pliensbachian 1000–1500 ppmV, and the early Toarcian 1094–2610 ppmV) and two events of rapid falling pCO2 by ~ 1000–1300 ppmV are observed, illustrating the pCO2 perturbation in the Early Jurassic. The pattern and associated rapid falling events of pCO2 are compatible with the excursions of stable isotopes and seawater temperature from the coeval marine sediments, consistent with a positive feedback of climate to pCO2 through the Early Jurassic.

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A revision ofSanpasaurus yaoiYoung, 1944 from the Early Jurassic of China, and its relevance to the early evolution of Sauropoda (Dinosauria)

PeerJ ◽

10.7717/peerj.2578 ◽

2016 ◽

Vol 4 ◽

pp. e2578 ◽

Cited By ~ 6

Author(s):

Blair W. McPhee ◽

Paul Upchurch ◽

Philip D. Mannion ◽

Corwin Sullivan ◽

Richard J. Butler ◽

...

Keyword(s):

Geographic Distribution ◽

Southwest China ◽

Sichuan Province ◽

Early Jurassic ◽

Early Evolution ◽

Type Locality ◽

Additional Material

The Early Jurassic of China has long been recognized for its diverse array of sauropodomorph dinosaurs. However, the contribution of this record to our understanding of early sauropod evolution is complicated by a dearth of information on important transitional taxa. We present a revision of the poorly known taxonSanpasaurus yaoiYoung, 1944 from the late Early Jurassic Ziliujing Formation of Sichuan Province, southwest China. Initially described as the remains of an ornithopod ornithischian, we demonstrate that the material catalogued as IVPP V156 is unambiguously referable to Sauropoda. Although represented by multiple individuals of equivocal association,Sanpasaurusis nonetheless diagnosable with respect to an autapomorphic feature of the holotypic dorsal vertebral series. Additional material thought to be collected from the type locality is tentatively referred toSanpasaurus. If correctly attributed, a second autapomorphy is present in a referred humerus. The presence of a dorsoventrally compressed pedal ungual inSanpasaurusis of particular interest, with taxa possessing this typically ‘vulcanodontid’ character exhibiting a much broader geographic distribution than previously thought. Furthermore, the association of this trait with other features ofSanpasaurusthat are broadly characteristic of basal eusauropods underscores the mosaic nature of the early sauropod–eusauropod transition. Our revision ofSanpasaurushas palaeobiogeographic implications for Early Jurassic sauropods, with evidence that the group maintained a cosmopolitan Pangaean distribution.

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Using species distribution modeling to improve conservation of medicinal plants in Southwest China

Planta Medica ◽

10.1055/s-0036-1596158 ◽

2016 ◽

Vol 81 (S 01) ◽

pp. S1-S381

Author(s):

B Liu ◽

F Li ◽

Z Guo ◽

L Hong ◽

W Huang ◽

...

Keyword(s):

Medicinal Plants ◽

Species Distribution ◽

Southwest China ◽

Species Distribution Modeling ◽

Distribution Modeling

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A Permeable Asphalt Pavement Decision Strategy Based on the Rainfall Characteristics in Guizhou, Southwest China

CICTP 2020 ◽

10.1061/9780784483053.153 ◽

2020 ◽

Author(s):

ShiHai Zhao ◽

Zhe Huang ◽

Zhe Li ◽

YiMeng Liu ◽

JiuPeng Zhang ◽

...

Keyword(s):

Southwest China ◽

Asphalt Pavement ◽

Decision Strategy ◽

Rainfall Characteristics

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Prince Henri d'Orleans (1867–1901): geographical and botanical exploration between inner Asia and southwest China

Journal of the Society for the Bibliography of Natural History ◽

10.3366/jsbnh.1978.8.4.399 ◽

1978 ◽

Vol 8 (4) ◽

pp. 399-399

Author(s):

WILLIAM GARDENER

Keyword(s):

Southwest China ◽

Western China ◽

Left Bank ◽

Inner Asia ◽

Botanical Exploration ◽

Western Yunnan ◽

Westerly Direction ◽

Chinese Province ◽

The Right ◽

North Western

Prince Henri d'Orleans, precluded by French law from serving his country in the profession of arms, had his attention turned early towards exploration. In 1889, accompanied by the experienced traveller Gabriel Bonvalet, he set out from Paris to reach Indo-China overland by way of Central Asia, Tibet and western and south western China. The journey made contributions in the problems of the whereabouts of Lap Nor and the configuration of the then unexplored northern plateau of Tibet; and in botany it produced some species new to science. The party reached Indo-China in 1890. In 1895, having organised an expedition better equipped for topographical survey and for investigations in the fields of natural history and ethnography, Prince Henri set out from Hanoi with the intention of exploring the Mekong through the Chinese province of Yunnan. After proceeding up the left bank of the Salween for a brief part of its course and then alternating between the right and left banks of the Mekong as far up as Tzeku, the party found it advisable to enter Tibet in a north westerly direction through the province of Chamdo and instead crossed the south eastern extremity of the country, the Zayul, by a difficult track which led them to the country of the Hkamti Shans in present day Upper Burma, and thence to India completing a journey of 2000 miles, "1500 of which had been previously untrodden" (Prince Henri). West of the Mekong, the journey established that the Salween, which some geographers had claimed took its rise in or near north western Yunnan, in fact rose well north in Tibet, and that, contrary to previous opinions, the principal headwater of the Irrawaddy rose no further north than latitude 28°30'. Botanical collections were confined to Yunnan, where the tracks permitted mule transport, and they produced a number of species new to science and extended the range of distribution of species already known.

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