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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
Dicotylophyllum ČB570
Dicotylophyllum EK384
Dicotylophyllum EK385
Dicotylophyllum EK386
Dicotylophyllum EK387
Dicotylophyllum EK388
Dicotylophyllum EK389
Dicotylophyllum EK390
Dicotylophyllum EK391
Dicotylophyllum ČB540
Dicotylophyllum ČB594
Dicotylophyllum ČB520
DicotylophyllumAD Bůžek, Holý, Kvaček (1958) ČB796
Dicotylophyllum ČB589
Dicotylophyllum ČB582
Dicotylophyllum ČB501
Dicotylophyllum ČB509
Dicotylophyllum ČB546
Dicotylophyllum ČB581
Dicotylophyllum ČB545

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]