Local natural history group Rhayader by Nature is delighted to present a talk by a leading international palaeontologist this ...

Ediacaran; Ꞓ, Cambrian; O, Ordovician; CI, confidence interval ... The 'boring billion' refers to a period in Earth's history, approximately 1.45 to 0.72 billion years ago, characterized by relative ...

Samuel Garrett does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

The first fossil record we have of fire comes from the Middle Ordovician period, billions of years later. In terms of fire, there is a sweet spot. Any lower than 13 percent oxygen, and plant ...