Cretaceous Quotes (2 quotes)
It is not the amount of oxygen that determines flammability, but its proportion in the mixture with nitrogen. About 40 per cent of the nitrogen on Earth is now buried in the crust; perhaps in the Cretaceous that nitrogen had not yet been buried and existed in the air and so kept the proportion of oxygen safer for trees [from greatly intensified forest fires].
In The Revenge of Gaia: Earth’s Climate Crisis & The Fate of Humanity (2006, 2007), 27.
South America must have lain alongside Africa and formed a unified block which was split in two in the Cretaceous; the two parts must then have become increasingly separated over a period of millions of years like pieces of a cracked ice floe in water.
In The Origins of Continents and Oceans (4th ed. 1929), trans. John Biram (1966), 17.
In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
(1987) -- 
