Paleobotany Division of the Natural History Museum and Biodiversity Research Center, University of Kansas, Lawrence, Kansas, USA
Type specimens
Holotype T12–990a, T12–990b for Umkomasia uniramia Axsmith, Ed.L.Taylor, T.N.Taylor et Cúneo
Holotype T12–990a, T12–990b for Umkomasia uniramia Axsmith, Ed.L.Taylor, T.N.Taylor et Cúneo