Another Foulden fossil leaf magnified 400x.

The oval shapes visible in the image are the openings through which the leaf once released water and absorbed carbon dioxide.

Credit: Tammo Reichgelt/University of Connecticut

• Fossil leaves point to global greening in the coming decades (20 August 2020)

• Original image (2.3 MB, 1501.0x1277.0 px)
• Preview image (182.5 KB, 1280x1089 px, JPEG format)

Go back