Davidia antiqua (Newb.) Manchester. Leaf impression, showing nearly orbicular shape, cordate base, regularly spaced teeth, successive marginal branches of the lower pairs of secondary veins, and percurrent tertiary veins. Little Bitter Creek Road, Wyoming (locality UF 18811), UF 33588. Figure 4A in Manchester, S . R. 2002. Leaves and fruits of Davidia (Cornales) from the Paleocene of North America. Systematic Botany 27(2): 368-382.