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Balloon Vine Branch with Willow and Mosquitoes
Stock Number  FPUBV04

Name:   Cardiospermum coloradensis (Balloon Vine)
Age:  Eocene
Formation:  Green River Formation
Location:  Bonanza, Utah
Size:  Plate is 4.5 inches wide

This is a very fine specimen of Cardiospermum coloradensis, Balloon Vine leaves, from the Green River Formation of Utah. Living members of Cardiospermum are herbaceous, or woody vines. The fossil species appear to represent shrubs rather than vines. This branch is quite nice for the type and exhibits very good detail. The large-lobed leaves have great color and contrast and are well showcased on the rectangular plate of shale that also includes a Willow leaf and over a dozen mosquitoes! (lower left corner) This is a very distinct multiple specimen of this strange-looking leaf from the Eocene.