At: Palaeontographica, Abtheilung, B, Paläophytologie, 284, 1-3 By: Kowalski R.
bookAt: Chlor. Protogaea, Leipzig, Wilhelm Engelmann, 8-9 By: Unger F.
bookAt: Chlor. Protogaea, Leipzig, Wilhelm Engelmann, 4-5 By: Unger F.
bookAt: Chlor. Protogaea, Leipzig, Wilhelm Engelmann, 6-7 By: Unger F.
bookAt: Chlor. Protogaea, Leipzig, Wilhelm Engelmann, 1842, 2-3 By: Unger F.
bookAt: Chlor. Protogaea, Leipzig, Wilhelm Engelmann, 1841, 1 By: Unger F.
journalAt: Paleontologicheskii Zhurnal, 1963, 1 By: Maslov V. P.
journalAt: Sbornik statej po paleontologii i biostratigrafii, 24 By: Rasskazova E. S.
journalAt: Sbornik statej po paleontologii i biostratigrafii, 23 By: Rasskazova E. S.
journalAt: International Journal of Plant Sciences, 180, 7 By: Friis E. M., Crane P. R., Pedersen K. R.