This sedimentary rock, a natural history artifact, was found near Port Camden on Kuiu Island and contains the fossilized imprints of alder (Alnus sp.) leaves. Fossilized alder leaves in Southeast Alaska are identified by their simple, ovate-to-elliptical shape, sharp double-toothed margins and pinnate veins.
Alder leaves, along with birch and willow, are common fossils found in the sedimentary rocks that lined the shores of historic water bodies throughout the Northern Hemisphere. Cenozoic-age deposits, particularly from the Paleocene through the Pleistocene epochs, approximately 58-million to...
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