Scientists observed that all examined craters are situated within 30 degrees of the equator. This concentrated impact area, ...
2024年10月29日,云南大学古生物研究院刘煜团队凭借其近年来在寒武纪澄江节肢动物化石CT三维无损研究上积累的丰富研究经验,获邀与英国牛津大学、美国耶鲁大学和美国加利福尼亚大学伯克利分校的科研人员组成国际研究团队,在国际著名学术期刊Current ...
Paleontologists have identified fossils of an ancient species of bug that spent the past 450 million years covered in fool's ...
Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...
The conclusions come from patterns tracked by scientists that point to several meteorite impacts through geological records.
A creature that scuttled along the seafloor 450 million years ago has been preserved in a rare and striking fossil that ...
地质历史时期,红层的沉积现象非常广泛,其中尤以海相红层引起了地质学家的广泛关注。海相红层的形成不仅与水体环境密切相关,还受到生物活动和成岩过程的深刻影响。众所周知,海相红层的主要致色矿物是赤铁矿,而三价铁矿物的形成通常需要氧化剂的参与,因此,传统观点 ...
Paleontologists recently uncovered a striking golden fossil—encased in fool’s gold—scientifically known as iron pyrite, estimated to be 450 million years old. This ancient fossil belongs to a newly ...
Life in the Ordovician period looked very different from today. The land was barren and devoid of life, but the sea was teeming. Squids and sea anemones, which can be seen in the illustration ...
A new 450-million-year-old fossil arthropod, preserved in 3D by iron pyrite (fool’s gold), has been unveiled by scientists.
The Ordovician world was a watery one in which vast oceans covered almost the entire northern hemisphere. In the south, the mega-continent of Gondwana drifted. According to the University of ...