Publication Type: | Journal Article |
Year of Publication: | 2004 |
Authors: | Friis, E. M., Pedersen, K. R., Crane P. R. |
Journal: | Proc. Natl. Acad. Sci. USAProc. Natl. Acad. Sci. USA |
Volume: | 101 |
Pagination: | 16565-16570 |
Keywords: | fossil angiosperms, angiosperm evolution, striate pollen, zona-aperturate pollen, extinctions |