Cardiospermum coloradensis are fossil plant remains found in the famous Green River formation deposits, which are of Eocene age, dating them to between 53 to 48 million years old and were collected in Colorado, USA. These particular species, more commonly known as a balloon vine depict the leaf of the plant, it belongs to the soapberry family, which are often easily recognised in modern times due to their vibrant bright red fruit. The leaves themselves are a dark brown colour, while the shale matrix, as expected of these fossils is pale sandy colour. They are a common plant fossil found in thuis formation, along with many other flora fossils,they are of high quality, the leaves measure approximately 3 to 4 cm in length while the shale matrix differs from specimen to specimen.Each will come supplied in a packet with an information label.
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