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Flowering plants

      The flowering plants (angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies (derived characteristics). These characteristics include flowers, endosperm within the seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from gymnosperms around 245–202 million years ago, and the first flowering plants known to exist are from 140 million years ago. They diversified enormously during the Lower Cretaceous and became widespread around 100 million years ago, but replaced conifers as the dominant trees only around 60–100 million years ago.

Source: http://en.wikipedia.org/wiki/Flowering_plant
Zelkova zelkovaefoliaBůžek (1971), text. fig. 5d ČB208
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 4 ČB186
Zelkova zelkovaefoliaBůžek (1971), text. fig. 5c ČB200
Zelkova zelkovaefoliaAD Bůžek (1971) ČB193
Zelkova zelkovaefoliaAD Bůžek (1971) ČB195
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 9 ČB199
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 13 ČB203
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 7, Pl. 15, fig. 8 ČB204
Zelkova zelkovaefoliaAD Bůžek (1971) ČB209
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 6 ČB188
Zelkova zelkovaefoliaBůžek (1971), Pl. 21, fig. 9 ČB190
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 10 ČB196
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 5 ČB212
Zelkova zelkovaefolia MP90
Zelkova zelkovaefoliaKvaček a Walther (2004), text. fig. 10. 3 MP61
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 3 ČB352
Zelkova zelkovaefoliaKvaček, Teodoridis, Zajícová (2015) Pl. 11, fig. 5 EK288
Zelkova zelkovaefolia MP88
Zelkova zelkovaefoliaBůžek (1971), Pl. 22, fig. 12 ČB191
Zizyphus tiliaefolius p2456
Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]