Results 11 to 20 of about 115,713 (383)
Engineering the Cambrian explosion: the earliest bioturbators as ecosystem engineers [PDF]
Special Publications, 2017 By applying modern biological criteria to trace fossil types and assessing burrow morphology, complexity, depth, potential burrow function and the likelihood of bioirrigation, we assign ecosystem engineering impact (EEI) values to the key ichnotaxa in ...
Liam G. Herringshaw +2 more
semanticscholar +3 more sources
Increase in metazoan ecosystem engineering prior to the Ediacaran–Cambrian boundary in the Nama Group, Namibia [PDF]
Royal Society Open Science, 2019 The disappearance of the soft-bodied Ediacara biota at the Ediacaran–Cambrian boundary potentially represents the earliest mass extinction of complex life, although the precise driver(s) of this extinction remain unresolved.
Alison T. Cribb +8 more
doaj +2 more sources
Proceedings of the National Academy of Sciences of the United States of America, 2023 Significance The early Cambrian Period marks the important interval when most major groups of animals first appear in Earth’s sedimentary record. The tempo of this biological diversification is still poorly defined because, globally, there are few ...
L. Nelson +5 more
semanticscholar +1 more source
Synchronizing rock clocks in the late Cambrian
Nature Communications, 2022 The Cambrian is the most poorly dated period of the past 541 million years. This hampers analysis of profound environmental and biological changes that took place during this period.
Zhengfu Zhao +6 more
semanticscholar +1 more source
Current understanding on the Cambrian Explosion: questions and answers
PalZ, 2021 The Cambrian Explosion by nature is a three-phased explosion of animal body plans alongside episodic biomineralization, pulsed change of generic diversity, body size variation, and progressive increase of ecosystem complexity.
Xingliang Zhang, D. Shu
semanticscholar +1 more source
Fossil evidence unveils an early Cambrian origin for Bryozoa
Nature, 2021 Bryozoans (also known as ectoprocts or moss animals) are aquatic, dominantly sessile, filter-feeding lophophorates that construct an organic or calcareous modular colonial (clonal) exoskeleton1–3.
Zhiliang Zhang +9 more
semanticscholar +1 more source
A high-resolution summary of Cambrian to Early Triassic marine invertebrate biodiversity
Science, 2020 A finer record of biodiversity We have pressing, human-generated reasons to explore the influence of environmental change on biodiversity. Looking into the past can not only inform our understanding of this relationship but also help us to understand ...
Jun-xuan Fan +19 more
semanticscholar +1 more source
Proceedings of the Royal Society B, 2021 Durophagy arose in the Cambrian and greatly influenced the diversification of biomineralized defensive structures throughout the Phanerozoic. Spinose gnathobases on protopodites of Cambrian euarthropod limbs are considered key innovations for shell ...
R. Bicknell +6 more
semanticscholar +1 more source
Geological structure of Usol-Bilir reservoir, south-eastern boarder of the Kureiya Syneclise [PDF]
Нефтегазовая геология: Теория и практика, 2021 In the Cambrian interval, of the sedimentary section cover the junction zone of three large tectonic structures: the Nepa-Botuoba Anteclise, the Katanga Saddle, and the Kureiya Syneclise of the Eastern Siberian petroleum basin, four reservoir areals were
Mar'yanovich Yu.V
doaj +1 more source
Open Geosciences, 2021 The black rock series in the Qiongzhusi Formation contains important geochemical information about the early Cambrian tectonic and ecological environment of the southwestern Yangtze Block.
Liu Hao +8 more
doaj +1 more source