Info

Cenozoic

Mesozoic

Palaeozoic

Neo-proterozoic

Meso-proterozoic

Palaeo-proterozoic

Middle

Early

Flowering plants Birds

Mammals

Reptiles

Amphibians

Insects

Cooksonia

First land plants

Aquatic arthropods

Ediacarans

Earliest metazoan fossils Origin of Hox genes Green algae

Multicellular algae radiation Increase in introns and exon shuffling Multicellular red algae s a!

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