At: Verhandelingen van het Geologisch-Mijnbouwkundig Genootschap voor Nederland en Kolonien, Series, Geologische, 7, 73–148 By: Den Berger L. G.
journalAt: Botanical Gazette, 143, 3 By: Blackwell W. H.
bookAt: Adv. Legume Syst., Kew, The Royal Botanic Gardens, Kew, 4 By: Dilcher D. L., Herendeen P. S., Hueber F. M.
journalAt: Geology and Palaeontology of Southeast Asia, 4 By: Endô R.
journalAt: Geology and Palaeontology of Southeast Asia, 7 By: Endô R.
journalAt: Palaeobotanist, 2 By: Rao S. R. N., Verma C. P.
journalAt: Bulletin of the National Science Museum Tokyo, Series, C, Geology and Paleontology, 10, 3 By: Nakamura M., Chisaka T.
journalAt: Phytotaxa, 524, 2 By: Doweld A. B.
journalAt: Journal of the National Museum, Series, Natural history, 186 By: Kvaček J., Heřmanová Z.
journalAt: American Journal of Botany, 95, 12 By: Herrera F., Jaramillo C. A., Dilcher D. L., Wing S. L., Gómez-Navarro C.