Medullosa
Medullosa is an extinct genus of Pteridospermatophyta from the Late Mississippian to the Early Permian. The genus has a distribution across Europe and North America, with only two species having been found on both continents.
Medullosa is an extinct genus of Pteridospermatophyta from the Late Mississippian to the Early Permian. The genus has a distribution across Europe and North America, with only two species having been found on both continents.