Fossil And Modern Giant Sequoia Foliage Compared

This is a twig from a giant sequoia (Big Tree, called Sequoiadendron chaneyi), measuring 26mm in length, collected from the Middle Miocene Aldrich Station Formation, Aldrich Hill, Nevada. It is approximately 13 to 12.5 million years old.

For comparison with the specimen of fossil Big Tree foliage above, here is a Big Tree twig plucked from the giant sequoia (Sequoidendron giganteum) we have planted in our back lot; the specimen shown here is 65mm in actual length. Note the distinctive awl-shaped leaves, which also show up well in the fossil specimen above.

Return To Fossil Plants At Aldrich Hill, Nevada