At: Studia Universitatis Babeş-Bolyai, Series, Geologia, 40, 2 By: Givulescu R., Barbu O., Codrea V.
journalAt: Kexue tongbao, 58, Suppl. 1 By: Liu H.-M., Ferguson D. K., Li C.-S., Wang Y.-F.
journalAt: Review of Palaeobotany and Palynology, 85, 3-4 By: Krassilov V. A., Shilin P. V.
journalAt: Palaeontology, 27, 2 By: Feist M., Grambast-Fessard N.
journalAt: Tertiary research, 9, 1-4 By: Knobloch E.
journalAt: Phytomorphology, 51, 1 By: Arya R., Guleria J. S., Srivastava R.
journalAt: Geophytology, 51, 1–2 By: Doweld A. B.
journalAt: Phytologia, 1995, 79, 2 By: Reveal J. L.
journalAt: Acta Geologica Sinica, Series, English edition, 87, 5 By: Xu X.-H., Li R.-Y., Dong C., Wang Q.-J., Jin P.-H., Sun B.-N.
journalAt: Paleontological Journal, 42, 5 By: Naugolnykh S. V.