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Large, Distinct Balloon Vine Leaf from Utah
Stock Number  FPUBV303
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Name:   Cardiospermum coloradensis Leaf
Age:  Eocene
Formation:  Green River Formation
Location:  Bonanza, Utah
Size:  Leaf is 2.3 inches long including petiole

This is a beautiful specimen of Cardiospermum coloradensis, a Balloon Vine, from the Eocene of Utah. Living members of Cardiospermum are herbaceous (woody) vines. The fossil species appear to represent shrubs. The distinctly lobed leaf has very good color and contrast. The leaf is well showcased on the natural matrix plate. And there is also a Mimosites leaf on the back side of the plate. This is a very fine example of a large balloon vine leaf from the Green River Shale.