important events

Cyclic ice ages.

First indications on human beings, palm trees widespread.

Mass extinction including the dinosaurs, dominance of the deciduous trees, formation of flint in northern germany.

Oldest angiosperms, era of dinosaurs.

First birds and mammals, formation of marine chert in southern germany (Muschelkalk chert bank).

Mass extinction at the end of Permian, increasing dominance of gymnosperms, creation of fossiliferous cherts in Europe an Southamerica.

Ice age on southern hemispere, era of fern trees, horsetail and clubmoss trees. Equatorial coal forests, first reptiles.

Oldest forests and spermatophytes, formation of the famous Rhynie chert. First amphibians.

Oldest macroscopic remains of land plants at the end of Silurian.

Ice age at the end of Ordovician, oldest spores of land plants.

Dominance of invertebrates, oldest fishes.