Umbellularia

Citations total:
2
link From To Geolocation Author - title Year
details Early Miocene Middle Miocene USA(Pacific Northwest) Wolfe,J.A. Neogene floristic and vegetational history of the Pacific Northwest. 1969
details Pliocene California Fleming,R.F. Pliocene climate of the Colorado Plateau and the age of the Grand Canyon: evidence from Anza-Borrego, California 1999