A5101706021- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Paleontology and Evolutionary Biology
- Marine Biology and Ecology Research
- Geochemistry and Elemental Analysis
- Geological and Geophysical Studies
- Evolution and Paleontology Studies
- Hydrocarbon exploration and reservoir analysis
- Ideological and Political Education
- Paleopathology and ancient diseases
- Livestock and Poultry Management
- Global Trade and Competitiveness
- Risk Management in Financial Firms
- Medicinal Plant Pharmacodynamics Research
- Phytochemistry and Biological Activities
- International Business and FDI
- Botanical Research and Chemistry
- International Maritime Law Issues
- Plant Diversity and Evolution
- Geological Studies and Exploration
- Geological and Geochemical Analysis
- Pleistocene-Era Hominins and Archaeology
- Fungal Biology and Applications
- Geological formations and processes
Northwest University
2013-2024
State Key Laboratory of Continental Dynamics
2011-2022
Continental (United Kingdom)
2019
Nanjing Institute of Geology and Paleontology
2013-2015
Chinese Academy of Sciences
2013-2015
Northwest University
2010
Affiliated Hospital of Jiangxi College of TCM
1999
As signposted by the fossil record, early Cambrian period chronicles appearance and evolutionary diversification of most animal phyla in a geologically rapid event, traditionally termed Explosion.The uniqueness this event pleads for cause, over years, numerous biotic abiotic factors have been offered as possible triggers.Many such explanations, however, either fail to correspond time or do not provide functional mechanism explain pattern diversification.We support notion that series...
Abstract In terminal Ediacaran strata of South China, the onset calcareous biomineralization is preserved in paleontological transition from Conotubus to Cloudina repetitious limestone facies Dengying Formation. Both fossils have similar size, funnel‐in‐funnel construction, and epibenthic lifestyle, but biomineralized, whereas not. To provide environmental context for this evolutionary milestone, we conducted a high‐resolution elemental stable isotope study richly fossiliferous Gaojiashan...
Research Article| February 28, 2019 Diverse biomineralizing animals in the terminal Ediacaran Period herald Cambrian explosion Yaoping Cai; Cai * 1State Key Laboratory of Continental Dynamics, Shaanxi Early Life and Environments, Department Geology, Northwest University, Xi'an 710069, China *E-mails: yaopingcai@nwu.edu.cn, xiao@vt.edu Search for other works by this author on: GSW Google Scholar Shuhai Xiao; Xiao 2Department Geosciences, Virginia Tech, Blacksburg, 24061, USA Guoxiang Li; Li...
The late Ediacaran Dengying Formation (ca. 551.1-538.8 Ma) in South China is one of two successions where Ediacara-type macrofossils are preserved carbonate facies along with skeletal fossils and bilaterian animal traces. Given the remarkable thickness carbonate-bearing strata deposited less than 12.3 million years, holds potential for a relatively continuous chemostratigraphic profile terminal stage. In this study, detailed sedimentological (δ13Ccarb, δ18Ocarb, δ13Corg, δ34Spyrite,...
The fossil record of the terminal Ediacaran Period is typified by iconic index Cloudina and its relatives. These tube-dwellers are presumed to be primitive metazoans, but resolving their phylogenetic identity has remained a point contention. root problem lack diagnostic features; that is, interpretations have largely centered on only available source information-their external tubes. Here, using tomographic analyses fossils from Wood Canyon Formation (Nevada, USA), we report evidence...
Owing to their temporal position during the decline of classic Ediacara biota and appearance more recognizable metazoans Cambrian Period, terminal Ediacaran (∼551–539 Ma) assemblages tubular fossil forms hold potential improve understanding biotic turnover near end Period. Cloudinid taxa, including index Cloudina, are most well studied these due global palaeogeographical distribution. Recent reports revealed ecosystems tubicolous organisms from Great Basin region, Nevada, USA, assigned taxa...
Y. Cai & H. Hua comment: Zhuravlev, Gámez Vintaned Ivantsov (2009) reported the problematic Ediacaran fossil Gaojiashania annulucosta in Siberia and they considered that this is first find of outside China, since had previously only been from Gaojiashan Member middle Dengying Formation Ningqiang area, southern Shaanxi Province, South China. However, we believe so-called Siberian was mis-identified, what described as by more appropriately ascribed to Shaanxilithes ningqiangensis , another...
Abstract The earliest fossil record of animal biomineralization occurs in the latest Ediacaran Period ( c . 550 Ma). Cloudina and Sinotubulites are two important tubular taxa among these skeletal fossils. evolutionary fate -type fossils across Ediacaran–Cambrian transition, however, remains poorly understood. Here we report a multi-layered microfossil Feiyanella manica gen. et sp. nov. from phosphorite interval lowest Cambrian Kuanchuanpu Formation, southern Shaanxi Province, South China....
Terminal Ediacaran fossils (ca. 550–539 Ma) contain potentially the earliest known animals. Tubular represent a characteristic fraction of terminal fossil forms and they may have served as evolutionary ancestors subsequent diversification tubular taxa in early Cambrian. However, paleogeographic range previously reported those undescribed locked record, remains poorly documented. Our presentation illustrates three assemblages from Denying Formation at Shengchangba section southern...