Rare Cedrelospermum Nervosum Fruit Fossil Plant Leaf and Balloon Vine Leaf Eocene Age

Cardiospermum Fossil Leaf – Eocene Herbaceous Vine from the Green River Formation
Discover a piece of prehistoric plant history with this Cardiospermum fossil leaf, dating to the early Middle Eocene (approximately 48–50 million years ago). Preserved in the renowned Green River Formation across Utah, Colorado, and Wyoming, this specimen displays an exquisite, deep, dark chocolate hue and remarkable preservation, highlighting the delicate morphology of this herbaceous vine genus.

Cardiospermum, primarily composed of herbaceous vines, played a significant role in the Eocene vegetation surrounding the ancient lakes where these shales were deposited. Fossil leaves from this genus provide valuable insight into plant diversity, paleoecology, and freshwater lake ecosystems during the Paleogene period. Today, one species of Cardiospermum is considered invasive in the Southern United States, emphasizing the long ecological legacy of this plant lineage.

Ideal for fossil collectors, paleobotany enthusiasts, educators, and museums, this Cardiospermum fossil leaf is both a scientifically significant and visually striking specimen, offering a tangible connection to the lush Eocene landscapes of North America and the rich, diverse flora preserved in the Green River Formation.