Fossilized Leaf (IMAGE)

University of Arizona

Fossilized Leaf

Caption

This is a fossilized leaf of <i>Vitis stantonii</i>, a grapelike plant from the Hell Creek Formation in North Dakota. Blonder is especially interested in the venation network of each leaf, because veins may be a very good proxy for temperature via their role in constraining leaf water usage. "Fortunately many fossils have exquisite preservation of veins," he said.

Credit

Benjamin Blonder

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