1. Sapindaceae;Acevedo-Rodríguez,2011
2. Malvaceae;Bayer,2003
3. Additions to the Tertiary Ruby Paper Shale flora of Southwestern Montana;Becker;Bull. Torrey Bot. Club,1960
4. The Tertiary Mormon Creek flora from the Upper Ruby River Basin in southwestern Montana;Becker;Palaeontogr. Abt. B,1960
5. Oligocene plants from the Upper Ruby River Basin, southwestern Montana;Becker;Geol. Soc. Am. Mem.,1961