130 million years
or 25 meters to today
Geologicial era: Mesozoic / Cretaceous
The development of flowering plants probably began about 200 million years ago, with some plants creating multiple copies of their entire genetic material in an individual (polyploidy). Further changes in the multiplied chromosomes led to the formation of flowers. This development must have taken place several times, which is shown by the large number of basic flower construction plans.
However, the oldest fossilized flowering plants are only about 130 million years old and very sparse, so their development is not yet well understood. They may have evolved from ferns that have been around for 400 million years. The flowering plants influence the development of insects and vice versa.
The climate is consistently warm. The country is ice-free, therefore the sea level is high. The atmosphere contains 1.5 times more oxygen and 4 times more CO2 than today. Gondwana continues to break apart. Australia separates from Antarctica and Africa from South America, India also splits off.