Molecular clocks, which use the mutation rate of biomolecules to deduce how long ago two species diverged, and phylogenetics (the evolutionary relationships between species) can tell us when sea ...

中国科学院南京地质古生物研究所，弗吉尼亚理工大学，西北大学的研究人员发表了题为“An early Ediacaran assemblage of macroscopic and morphologically differentiated eukaryotes”的文章，解析了埃迪卡拉纪早期具形态分异的宏体真核生物组合，为宏体真核生物的早期演化提供了 ...

Organically preserved, unicellular microfossils of Ediacaran and Cambrian age, which comprise single and multiple internal bodies within the vesicle, have been studied with a view towards explaining ...

Aug. 21 (UPI) --New fossil analysis suggests the planet's earliest known animals emerged at least 571 million years ago. The new study -- published this month in the journal Paleontology-- proves ...

A geological row is brewing over the first new geological period in 120 years to receive an official name. This month the International Union of Geological Sciences announced that its International ...

This is a preview. Log in through your library . Abstract The "Ediacaran organisms," which preceded and overlapped the Cambrian radiation of metazoans, include many fossils whose systematic positions ...

Evolutionary debate Ancient fossils found in South Australia lived on land, argues one researcher, whose controversial claim has huge implications for the tree of life. Professor Gregory Retallack of ...

May 19 (UPI) --The Garden of the Ediacaran was livelier than previously thought, study suggests. Researchers believe several Precambrian species used currents to move and eat. Until recently, ...

Scientists believe that the Earth is currently in the midst of its sixth major extinction event, but a new study suggests that’s not the case – it may actually be the seventh. Scientists have found ...

Ediacaran fossils of Charnia (A-C) and Shaanxilithes Photo: Courtesy of the Nanjing Institute of Geology and Paleontology Chinese scientists and researchers announced on Tuesday the discovery of new ...

A mysterious, ancient organism with leaf-like fronds once flourished in shallow waters. Now, after decades of debate as to whether these organisms were fungi, algae, protozoa or even from a lost ...