Eocene Green River Cardiospermum P-PCM-16-002 Agatized The genus name is derived

The genus name is derived from Greek words heart seed

Eryma minuta

widely spaced ribs are present on the inner coils and at the aperture

represents an early lacustrine phase of Lake Uinta and consists of approximately 29 m of interbedded clay-rich oil shale

This genus is often found preserved in a prone position and has a distinctive widely spread tail fan

Eocene Green River Cardiospermum P-PCM-16-002 Agatized The genus name is derivedCardiospermum coloradensis Green River Formation Parachute Creek Member Middle Eocene Uintah County, Utah This is a good example of the herbaceous vine. In general the impression from the upper Green River are highly variable in shape. They have rounded apices on the lobes and dissections of the leaflets. Fossil examples of Cardiospermum are much more coriaceous that that of living species as evidenced by the heavy deposit of carbon and marked relief