Article
Geography, Physical
Mingtao Yao, Zuoyu Sun, Qingqiang Meng, Jiachun Li, Dayong Jiang
Summary: The study revealed that the early Ladinian lacustrine ecosystem of the Ordos Basin is the earliest known Mesozoic-type, trophically multileveled lake ecosystem after the end-Permian mass extinction. Vertebrate coprolites from the Chang 7 Member showed evidence of piscivorous animals as producers, enriching the biodiversity of the ecosystem with large carnivorous predators. The presence of apex predators in a trophically multileveled lake ecosystem suggests the rebuilding of the top-predator trophic structure after the end-Permian mass extinction.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2022)
Article
Ecology
Jun-ling Liao, Tian Lan, Guang-hui Xu, Ji Li, Yan-jiao Qin, Ming-sheng Zhao, Yu-lan Li, Yue Wang
Summary: This study provides new insights into the tooth implantation, histology, and replacement of the marine reptile Keichousaurus hui, revealing the tooth histology for the first time and categorizing tooth replacement as iguanid type. The research suggests that Keichousaurus may have primarily fed on small fish or juvenile fish and relatively soft-bodied invertebrates in the same ecosystem based on the morphology and structure of its teeth.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Geosciences, Multidisciplinary
Binxian Qin, Martyn Lee Golding, Haishui Jiang, Yan Chen, Muhui Zhang, Li Kang, Dacheng Wang, Jinling Yuan
Summary: The study of Middle Triassic conodonts from the Shaiwa Section in the Nanpanjiang Basin helped identify six Anisian conodont zones. The conodont data from Shaiwa Section also suggest that the uppermost strata may be very close to the Anisian-Ladinian boundary. Additionally, the variation in relative abundance of different conodont shapes indicates different environmental preferences.
JOURNAL OF EARTH SCIENCE
(2021)
Article
Paleontology
Rodrigo Muller
Summary: Owenettids are small procolophonoids that survived beyond the Permo-Triassic boundary and have a fossil record ranging from the upper Permian to the Middle Triassic, with some species showing unique traits. The morphological disparity analysis reveals distinct groups of procolophonids and owenettids, with owenettids having a more conservative anatomy.
ACTA PALAEONTOLOGICA POLONICA
(2021)
Article
Geography, Physical
Xin Jin, Viktoria Baranyi, Marcello Caggiati, Marco Franceschi, Corey J. Wall, Guanglin Liu, Mark D. Schmitz, Piero Gianolla, James G. Ogg, Gang Lu, Zhiqiang Shi, Nereo Preto
Summary: The Yanchang Formation in the modern Ordos Basin was deposited during the Middle Triassic and is a key target for hydrocarbon exploration in Central China. The Chang 7 Member represents the maximum deepening phase of the lake system, but uncertainty remains about its chronostratigraphy. Marine influences in the Ordos Basin at that time suggest a possible global eustatic rise and highstand influencing lake-level variations.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Multidisciplinary Sciences
Yuanchong Wang, Kaibo Shi, Bo Liu
Summary: Abundant natural gas has been discovered in microbial carbonates in the fourth member of the Leikoupo Formation in Western Sichuan Basin. This study classified four types of microbial carbonates and eight types of microstructures based on the observation of 626 microbial thin sections. Six types of microbial microstructure associations were identified, mainly developed in microbial mounds, with varying sedimentary environments and hydrodynamic conditions. The presence of microbial microstructures not only affects the pore evolution of microbial carbonate reservoirs, but also influences the diagenesis of the fourth member of the Leikoupo Formation.
SCIENTIFIC REPORTS
(2023)
Article
Paleontology
Arnaud Brignon
Summary: Charles Antoine Gaillardot (1774-1833), a former military doctor in the French army, was the first to report the presence of bones in the Upper Muschelkalk of Rehainviller and Mont-sur-Meurthe, France. Georges Cuvier (1769-1832) described and illustrated these bones, attributing them to an unknown saurian with similarities to crocodiles, ichthyosaurs, plesiosaurs, monitors, and a large sea turtle. Forgotten for two centuries, the specimens are still preserved in the collections of the Museum national d'Histoire naturelle in Paris and have been presented for the first time since Cuvier's publication. The material represents the first sauropterygians discovered in the Triassic of France, including species such as Nothosaurus mirabilis and Simosaurus gaillardoti.
Article
Geosciences, Multidisciplinary
Kun Zhang, Rong Liu, Zhaojun Liu, Li Li
Summary: The study examines the impact of global and local humid climate events during the Middle-Late Triassic on paleontological evolution and mineral distribution. Analysis of the Yanchang Formation in the Ordos Basin reveals humid climate events during the Ladinian-Carnian period, leading to enhanced hydrological cycles.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Minglei Yang, Xinya Yu, Dancheng Zhu, Ke Long, Chaojin Lu, Huayao Zou
Summary: This study investigates the distribution and reservoir characteristics of microbial carbonates in the upper submember of the Middle Triassic Leikoupo Formation in the western Sichuan Basin. It identifies high-quality reservoirs in the central area (regressive microbialites) and northern area (intraclast dolograinstone). The study proposes a depositional framework for microbialites and evaluates its control on reservoir quality, which is significant for further research on microbial carbonate reservoirs.
MARINE AND PETROLEUM GEOLOGY
(2023)
Article
Ecology
Qi-Ling Liu, Long Cheng, Thomas L. Stubbs, Benjamin C. Moon, Michael J. Benton, Chun-Bo Yan, Li Tian
Summary: Neck elongation has independently occurred in different tetrapod groups, including land-dwelling giraffes and sauropod dinosaurs, aerial birds and pterosaurs, as well as marine sauropterygians. A new species of pachypleurosaurid sauropterygian, Chusaurus xiangensis, has been discovered in the Early Triassic Nanzhang-Yuan'an Fauna in South China. This new species exhibits features similar to its Middle Triassic relatives but has a relatively shorter neck compared to later species.
BMC ECOLOGY AND EVOLUTION
(2023)
Article
Multidisciplinary Sciences
Xin-Ying Ma, Guang-Hui Xu, Bing-He Geng
Summary: Neopterygii is a taxonomically diverse clade of ray-finned fishes, including the stem group of large-sized neopterygians, Colobodontidae, which has been discovered to have a more rapid diversification than previously thought. The new species, Feroxichthys panzhouensis sp. nov., shows unique features and a body form that suggests an adaptation to structurally complex habitats. Additionally, the findings provide important insights into the morphological and ecological diversity of neopterygian fishes in the Triassic marine ecosystems of South China.
Article
Multidisciplinary Sciences
Qiling Liu, Tinglu Yang, Long Cheng, Michael J. Benton, Benjamin C. Moon, Chunbo Yan, Zhihui An, Li Tian
Summary: A new specimen of the predatory marine reptile Diandongosaurus from the Middle Triassic Luoping Biota in southwest China is reported, indicating recovery from the Permian-Triassic mass extinction. The specimen, larger than most other known pachypleurosaurs, shows affinities with Diandongosaurus acutidentatus and was predated by an unknown hunter.
SCIENTIFIC REPORTS
(2021)
Article
Geography, Physical
Runjian Chu, Huaichun Wu, Qiang Fang, Wentao Huang, Dongyang Liu, Rukai Zhu, Shihong Zhang, Tianshui Yang, Chengshan Wang
Summary: This paper presents geological evidence of nonlinearity in the greenhouse climate state, as exemplified by the Middle Triassic lacustrine-delta succession of the Ordos Basin. The lacustrine facies exhibit dominant precession cycles, while the deltaic facies show the influence of eccentricity and obliquity cycles. These diverse manifestations of orbital cycles in different environments can be explained by nonlinear feedbacks.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Dongfang Song, Wenjiao Xiao, Brian F. Windley, Qigui Mao, Songjian Ao, Hao Y. C. Wang, Rui Li
Summary: The study examines Triassic provenance change in the foreland of the Alxa Block using field-based zircon U-Pb and Hf isotopic analysis, revealing that the final closure of the Paleo-Asian Ocean occurred in the Middle-Late Triassic.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Biology
Yi-Wei Hu, Jun Liu
Summary: A new morphotype of nothosaurs with distinct features has been discovered, providing valuable information for the study of sauropterygians' phylogeny.
HISTORICAL BIOLOGY
(2023)
Article
Paleontology
Wen-Bin Lin, Da-Yong Jiang, Olivier Rieppel, Ryosuke Motani, Andrea Tintori, Zuo-Yu Sun, Min Zhou
Summary: This study reexamines the classification morphology of Panzhousaurus based on a new specimen from China, refining diagnostic features and showing its phylogenetic relationship with other groups. Additionally, the research confirms the monophyly of Eusauropterygia and Pachypleurosauridae as traditionally believed.
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2021)
Review
Chemistry, Multidisciplinary
Wenbin Lin, Wei Lin, Xiaohui Cheng, Guozhou Chen, Yusuf Cagatay Ersan
Summary: MICP through denitrification has the potential to replace conventional petrochemical-based, labour intensive techniques in the construction industry, contributing to sustainable development and carbon emission reduction.
APPLIED SCIENCES-BASEL
(2021)
Article
Biotechnology & Applied Microbiology
Wenbin Lin, Yupeng Gao, Wei Lin, Zulei Zhuo, Wenting Wu, Xiaohui Cheng
Summary: The seawater-based microbially induced carbonate precipitation (MICP) method is used to improve the properties of siliceous sea sand. The results of comparative treatments and experiments show that the seawater-based cementation has lower density and carbonate content, but higher compressive strength compared to freshwater-based cementation. This indicates the high potential of the MICP technique in construction projects in seawater environments.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Proceedings Paper
Engineering, Civil
Xichen Xu, Hongtao Wang, Wenbin Lin, Xiaohui Cheng, Hongxian Guo
Summary: MICP technique has been applied to cement loose aeolian sands for road subgrade, with the goal of investigating the effects of cementation solutions with different concentrations and finding the most favorable one. The physical properties of aeolian sand were analyzed, bacterial suspension and cementation solution were injected, and the macro mechanical behaviors of bio-cemented sand samples were examined. Furthermore, the microstructures of bio-cementation were investigated using SEM and XRD analysis.
IFCEE 2021: EARTH RETENTION, GROUND IMPROVEMENT, AND SEEPAGE CONTROL
(2021)
Article
Paleontology
Da-Yong Jiang, Wen-Bin Lin, Olivier Rieppel, Ryosuke Motani, Zuo-Yu Sun
JOURNAL OF VERTEBRATE PALEONTOLOGY
(2018)
