Finished! Looks like this project is out of data at the moment!
Count cells of modern & fossil leaves. Help us track climate change over millions of years!
Learn moreIf you're just starting on this project use 'Practice Count' to learn how to identify cell types and compare your answers to expert classifications in the field guide. Next you have a choice of two levels to work on: 'Easier Count' or 'Stomatal count'. We need your help with both sets but Easier Count allows you to improve your skills while you count. Stomatal Count is great for once you're feeling more confident and are ready to tackle tougher images.
Zooniverse Talk
Chat with the research team and other volunteers!
Fossil Atmospheres Statistics
View more statsKeep track of the progress you and your fellow volunteers have made on this project.
Every click counts! Join Fossil Atmospheres's community to complete this project and help researchers produce important results. Click "View more stats" to see even more stats.
By the numbers
Message from the researcher
Connect with the research team on Talk to learn more about this project!
About Fossil Atmospheres
Ginkgo trees evolved before the dinosaurs, survived three mass extinctions, and one species is still living today. We are researching how the cells of leaves on ginkgos have changed over time, and whether we can use them to learn about the ancient atmosphere of the Earth.
