At: Palaeoworld, 21, 1 By: Xu H.-H., Marshall J. E. A., Berry C. M., Wang Y., Zhu H.-C., Wellman C. H.
journalAt: Transactions of the Gulf Coast Association of Geological Societies, 26 By: Wise S. W., Jr., Constans R. E.
journalAt: Alcheringa, 15, 1-2 By: Rozefelds A. C. F.
bookAt: Rec. Adv. Pl. Res., New York, Nova Science Publishers By: Poinar G. O.
journalAt: Botanical Gazette, 151, 4 By: Dilcher D. L., Basson P. W.
journalAt: American Journal of Botany, 105, 8 By: Crepet W. L., Nixon K. C., Weeks A. M.
journalAt: Historical biology, 2021, 33, 5 By: Poinar G. O., Vega F. E.
journalAt: Colston Papers, 17 By: Martini E.
journalAt: Smithsonian miscellaneous collections, 67, 3 By: Walcott C. D.
journalAt: Professional Papers / United States Geological Survey, 1964, 501, D By: Schopf J. M.