Medullosa

Medullosa Temporal range: Serpukhovian - Cisuralian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Division:	† Pteridospermatophyta
Order:	† Medullosales
Family:	† Alethopteridaceae
Genus:	† Medullosa B. von Cotta (1832)
Species
†Medullosa anglica †Medullosa centrofilis †Medulosa endocentrica †Medullosa geriensis †Medullosa gigas †Medullosa leuckartii †Medullosa noei †Medullosa olseniae †Medullosa porosa †Medullosa primaeva †Medullosa pusilla †Medullosa solmsii †Medullosa steinii †Medullosa stellata †Medullosa thomsonii

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 (M. primaeva and M. anglica) having been found on both continents. ^[1]

References

1. Taylor, Edith L.; Taylor, Thomas N.; Krings, Michael (21 January 2009). Paleobotany: The Biology and Evolution of Fossil Plants. Academic Press. ISBN   978-0-08-055783-0.