Kardiasperma

Kardiasperma is an extinct genus of flowering plant in the hazelnut family, Betulaceae, containing the single species Kardiasperma parvum. The species is solely known from the middle Eocene sediments exposed in north central Oregon and was first described from a series of isolated fossil nuts in cherts.

Kardiasperma

Kardiasperma is an extinct genus of flowering plant in the hazelnut family, Betulaceae, containing the single species Kardiasperma parvum. The species is solely known from the middle Eocene sediments exposed in north central Oregon and was first described from a series of isolated fossil nuts in cherts.