A5054078288- Paleontology and Stratigraphy of Fossils
- Marine Biology and Ecology Research
- Geology and Paleoclimatology Research
- Paleontology and Evolutionary Biology
- Evolution and Paleontology Studies
- Geological and Geophysical Studies
- Geochemistry and Elemental Analysis
- Geological formations and processes
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Methane Hydrates and Related Phenomena
- Calcium Carbonate Crystallization and Inhibition
- Marine and coastal plant biology
- Morphological variations and asymmetry
- Ichthyology and Marine Biology
- Geological Studies and Exploration
- Cephalopods and Marine Biology
- Isotope Analysis in Ecology
- Marine Invertebrate Physiology and Ecology
- Fossil Insects in Amber
- Geochemistry and Geologic Mapping
- Astro and Planetary Science
- Recommender Systems and Techniques
- Advanced Graph Neural Networks
- Tardigrade Biology and Ecology
Northwest University
2016-2025
Hangzhou Center for Disease Control and Prevention
2016-2025
State Key Laboratory of Continental Dynamics
2015-2024
Nanjing Institute of Geology and Paleontology
2020-2024
Chinese Academy of Sciences
2011-2024
China Mobile (China)
2020-2024
Dalian University of Technology
2024
Xi'an Jiaotong University
2024
Continental (United Kingdom)
2003-2023
Xi'an University of Architecture and Technology
2020
A treasure trove of Cambrian secrets Animal life exploded in diversity and form during the period about 500 million years ago. Fu et al. describe an early fossil site China that contains a variety specimens, more than half which are previously undescribed (see Perspective by Daley). The rivals described sites, such as Burgess Shale, should help to elucidate biological innovation diversification this period. Science , issue p. 1338 ; see also 1284
Abstract The Cambrian Explosion by nature is a three-phased explosion of animal body plans alongside episodic biomineralization, pulsed change generic diversity, size variation, and progressive increase ecosystem complexity. was time crown groups nested numbers stem with high-rank taxonomy Linnaean system (classes above). Some temporarily succeeded while others were ephemeral underrepresented few taxa. high number in the early history animals major reason for morphological gaps across phyla...
Soft-bodied and lightly sclerotized Chengjiang fossils have been found at more than ten new localities in the Lower Cambrian Qiongzhusi Canglangpu formations of east central Yunnan. At same time, three different fossil assemblages recognized, i.e. Kunmingella–Isoxys–Naraoia assemblage Chengjiang, Kunmingella – Cricocosmia Haikou, Wutingaspis Obolus Anning Wuding. These sites yield striking specimens, such as a tentacular animal, brachiopods with pedicles preserved, enigmatic Xidazoon (having...
Men who have sex with men (MSM) become one of high-risk population for human immunodeficiency virus (HIV) infection, due to their multiple partners and unprotected anal intercourse. Promoting HIV testing is an effective strategy the prevention control infection. We assessed factors associated a prior history, which could provide guidance implementation future intervention programs.A cross-sectional study was conducted in three cities Zhejiang Province, namely, Hangzhou, Ningbo Wenzhou, using...
Biosilicification—the formation of biological structures composed silica—has a wide distribution among eukaryotes; it plays major role in global biogeochemical cycles, and has driven the decline dissolved silicon oceans through geological time. While long been thought that eukaryotes are only organisms appreciably affecting cycling Si, recent discoveries silica transporter genes marked accumulation bacteria suggest prokaryotes may play an underappreciated Si cycle, particularly ancient...
An updated reconstruction of the body plan, functional anatomy and life attitude bradoriid arthropod Kunmingella is proposed, based on new fossil specimens with preserved soft parts found in lower Cambrian Chengjiang Haikou (Yunnan, SW China) previous evidence. The animal has a single pair short antennae pointing towards front (a setal pattern indicates possible sensory function). following set seven appendages (each composed 5-segmented endopod leaf-like exopod fringed setae) poorly...
Abstract The Lophotrochozoa includes disparate tentacle-bearing sessile protostome animals, which apparently appeared in the Cambrian explosion, but lack an uncontested fossil record. Here we describe abundant well preserved material of Cotyledion tylodes Luo et Hu, 1999, from (Series 2) Chengjiang deposits, reinterpreted here as a stem-group entoproct. entoproct affinity is supported by body plan and interior soft anatomy. consists upper calyx lower elongate stalk with distal holdfast....
The reaction mechanism of the pozzolanic metakaolin (MK) from atomic point view has not yet been explored. To explain process and view, molecular insight into MK calcium hydroxide (CH) was analyzed through dynamics (MD) simulation. results show that CH can be essentially regarded as decomposition penetration MK. Also, structure evolution after shows water molecules cannot penetrate till participation Ca2+ OH- ions CH. have strong interaction with drill structure, followed by destruction a...
Sulfate reduction is an essential metabolism that maintains biogeochemical cycles in marine and terrestrial ecosystems. reducers are exclusively prokaryotic, phylogenetically diverse, may have evolved early Earth's history. However, their origin elusive unequivocal fossils lacking. Here we report a new microfossil, Qingjiangonema cambria, from ∼518-million-year-old black shales yield the Qingjiang biota. long filamentous form comprising hundreds of cells filled by equimorphic equidimensional...
Radiodonts, a diverse clade of early Palaeozoic stem-group euarthropods, have provided critical information for understanding the evolution this phylum, and were important constituents marine ecosystems at time. The well-known Chengjiang Lagerstätte (Cambrian Stage 3, c. 518 Ma) has yielded highest known diversity radiodonts any Cambrian Konservat-Lagerstätten, represents crucial deposit radiodont research. One but generally overlooked taxon, previously identified as Anomalocaris sp. or...
Abstract Background Vetulicolians are a group of Cambrian metazoans whose distinctive bodyplan continues to present major phylogenetic challenge. Thus, we see vetulicolians assigned groups as disparate deuterostomes and ecdysozoans. This divergence opinions revolves around strikingly arthropod-like body, but one that also bears complex lateral structures on its anterior section interpreted pharyngeal openings. Establishing the homology these is central resolving where sit in metazoan...
Abstract Shell microstructure and mineralogy of Pelagiella madianensis Zhou & Xiao, 1984, a globally distributed Cambrian micromollusk, are investigated based on abundant extraordinarily well-preserved specimens from Xinji Formation, Longxian, Shaanxi, North China. Five types aragonitic microstructures have been recognized. The lamello-fibrillar microstructure, previously known , constructs the outermost shell layer, while remaining four reported here for first time in this genus. They...