Ancient epicratonic formations, which represent the bulk of pre-Jurassic sedimentary rocks,
have been widely interpreted as marine deposits, but recently developed bulk-shale …

Abstract The Ediacaran–Cambrian transition period was a critical time interval for the
environmental fluctuations and organismal evolution in geological history, popularly known …

The emergence and diversity of eukaryotes that occurred in the Proterozoic Eon (2.5–0.541
Ga) are the most important parts of life's evolution on the Earth. However, the critical time …

The genesis of cherts, rocks with> 90 wt% SiO 2, is suggested to be linked with dissolved
seawater silica and its elevated precipitation in the Phanerozoic due to massive biological …

Sponges have great significance for understanding the origin and evolution of metazoans.
Biomarker fossil and molecular clock studies suggest a Precambrian origin of sponges, but …

The extensive bedded cherts deposited during the Ediacaran–Cambrian (E–C) transition
period play a crucial role in understanding the geological evolution of this period, yet the …

The hexactinellid sponges Teganium and Teganiella are widespread in Ordovician,
Devonian and Carboniferous strata in Laurentia, but have not previously been reported …

The origin and early evolution of radiolarian fossils have always provoked great interest
among paleontologists. Yet, little is known about the earliest morphological and evolutionary …

放射虫是确定沉积环境的生物标志之一, 为终生浮游的单细胞原生生物, 其起源和早期演化一直
是热点问题, 通过研究, 本文综述了寒武系早期放射虫化石的研究历程, 总结了在寒武系时期各位 …

Les grands cycles biogéochimiques sont intimement liés à la capacité de biominéralisation
de plusieurs grandes lignées, capables de moduler sur des échelles géologiques le cycle …