Paleontologists have analyzed the body profiles of Ediacaran-Cambrian organisms by using trace fossils as proxies for body fossils.
A reconstruction of...
Paleontologists have hypothesized for decades that a major animal group called Ecdysozoa must be older than the Cambrian period, but until now its origins...
Quaestio simpsonorum is part of the Ediacara Biota, which preserves the oldest evidence for complex, macroscopic animals.
Close up of Quaestio simpsonorum...
An ultra-weak geomagnetic field between 591 and 565 million years ago (Ediacaran period) coincided with a significant increase in the oxygen levels in...
Paleontologists have examined how Tribrachidium, Rugoconites, and Obamus — three relatively common members of the Ediacaran biota (550 million years...
The oldest animals appear in the fossil record among Ediacaran biota communities. In new research, paleontologists from the Australian National University...
Mass extinctions are well recognized as significant steps in the evolutionary trajectory of life on Earth. In new research, geobiologists from Virginia...
Ikaria wariootia, a wormlike creature that lived more than 555 million years ago (Ediacaran period) in what is now Australia, is the earliest bilaterian,...
