Sections Three evolutionary bushes Evolution in the seas and the carbon cycle The continents go green Wounded from time to time by the appearance of some kind of grim reaper, life’s record since proper fossils… More| Stepping Stones
Sections An extinction timetable The K-Pg boundary event Almost Armageddon – the end-Permian event Whatever the scale, no matter the fineness of time divisions that we examine, the geological record throws up evidence for sudden,… More| Stepping Stones