That is a long time ago

Discussions of current science research and issues that is being done by others as it relates to our interests.

Moderators: edfrank, dbhguru

Post Reply
User avatar
Lucas
Posts: 837
Joined: Tue Jul 29, 2014 11:55 am

That is a long time ago

Post by Lucas » Thu Mar 10, 2016 12:24 pm

https://www.sciencedaily.com/releases/2 ... 112118.htm

Scientists have found the oldest fossils of the familiar pine tree that dominates Northern Hemisphere forests today.

Scientists from the Department of Earth Sciences at Royal Holloway, University of London have found the oldest fossils of the familiar pine tree that dominates Northern Hemisphere forests today.

The 140-million-year-old fossils (dating from the Cretaceous 'Age of the Dinosaurs') are exquisitely preserved as charcoal, the result of burning in wildfires. The fossils suggest that pines co-evolved with fire at a time when oxygen levels in the atmosphere were much higher and forests were especially flammable.

Dr Howard Falcon-Lang from Royal Holloway, University of London) discovered the fossils in Nova Scotia, Canada. He said: "Pines are well adapted to fire today. The fossils show that wildfires raged through the earliest pine forests and probably shaped the evolution of this important tree." Modern pines store flammable resin-rich deadwood on the tree making them prone to lethal fires. However, they also produce huge numbers of cones that will only germinate after a fire, ensuring a new cohort of trees is seeded after the fire has passed by."
We travel the Milky way together, trees and men. - John Muir

Post Reply

Return to “General Science Discussions”