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Fern s.l. (Pteridophyta)

      A fern is any one of a group of about 12,000 species of plants belonging to the botanical group known as Pteridophyta.Unlike mosses, they have xylem and phloem (making them vascular plants). They have stems, leaves, and roots like other vascular plants. Ferns reproduce via spores and have neither seeds nor flowers. By far the largest group of ferns are the leptosporangiate ferns, but ferns as defined here (also called monilophytes) include horsetails, whisk ferns, marattioid ferns, and ophioglossoid ferns. The term pteridophyte also refers to ferns and a few other seedless vascular plants (see classification section below). A pteridologist is a specialist in the study of pteridophytes in a broader sense that includes the more distantly related lycophytes. Ferns first appear in the fossil record 360 million years ago in the Carboniferous but many of the current families and species did not appear until roughly 145 million years ago in the late Cretaceous (after flowering plants came to dominate many environments).

Source: http://en.wikipedia.org/wiki/Fern
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 4 EK118
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 6 EK106
Verrutriletes compostipunctatusKnobloch (1981), Pl. V, fig. 1-3 EK179
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 1 EK104
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 2 EK142
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 9 EK182
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 11 EK184
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 10 EK105
Verrutriletes compostipunctatusKnobloch (1984), Pl. IV, fig. 8 EK107
Verrutriletes compostipunctatusKnobloch (1984), Pl. VII, fig. 7, 8 EK172
Verrutriletes dubiusAD, Knobloch (1979), Pl. IV, fig. 6 EK191
Verrutriletes dubiusAD, Knobloch (1979), Pl. IV, fig. 8 EK192
Verrutriletes dubiusAD, Knobloch (1979), Pl. IV, fig. 4 EK189
Verrutriletes dubiusAD, Knobloch (1979), Pl. IV, fig. 5 EK190
Verrutriletes ledenicensisAD, Knobloch (1979), Pl. IV, fig. 1 EK186
Verrutriletes ledenicensisAD, Knobloch (1979), Pl. IV, fig. 2 EK187
Verrutriletes ledenicensisAD, Knobloch (1979), Pl. IV, fig. 3 EK188
Verrutriletes maloninensisAD, Knobloch (1979), Pl. IV, fig. 11 EK198
Verrutriletes maloninensisAD, Knobloch (1979), Pl. IV, fig. 12 EK197
Verrutriletes moravicusKnobloch (1984), Pl. V, fig. 8 EK206
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]