4 ms·
This does a great job of putting evolution and geological time scales in perspective.
by neallindsay 6y ago
This does a great job of putting evolution and geological time scales in perspective.
- jrd259 6y agoThen you might like Andrew H. Knoll's book Life On A Young Planet. Knoll is at Harvard. His book has a long treatment of the global change in oxygen level (which by the way makes no mention of the theory here, that woody plants did it.)
- jessaustin 6y ago...which by the way makes no mention of the theory here, that woody plants did it. The oxygen "event" discussed in TFA did not fall within the period covered by Knoll's book: the first 3B years of life on earth. Lignin started to pile up only after plants came along. I haven't read the book, but you're probably thinking of "The Oxygen Catastrophe", which was caused by cyanobacteria.