Asteroid impact in Lappajärvi
73 million years – 73 meters An asteroid, with a diameter of about 500 m, hits Lappajärvi at about 50 km per second. The impact… Read More »Asteroid impact in Lappajärvi
73 million years – 73 meters An asteroid, with a diameter of about 500 m, hits Lappajärvi at about 50 km per second. The impact… Read More »Asteroid impact in Lappajärvi
100 million years – 100 metres Flowering plants are spreading. Dinosaurs are diverse and many theropod predatory dinosaurs, including birds, possess feathers. Marsupials evolve. The… Read More »Flowering plants and feathers
150 million years – 150 metres The climate is hot and humid. Dinosaurs and Pterosaurs diversify. For example, large Sauropods are common. Birds evolve. The… Read More »Dinosaurs diversify
201 million years – 201 metres The climate changes related to changes in sea level, asteroid collisions or volcanic activity cause about half of all… Read More »Extinction makes space for dinosaurs
220 million years – 220 meters The supercontinent Pangea is starting to break up. The climate is hot and dry. Surfaces of the oceans are… Read More »The first dinosaurs
252 million years – 252 metres 90% of all species go extinct. The most likely explanation is the climate change caused by massive flood basalt… Read More »The Great Dying
270 million years – 270 meters The supercontinent Pangea is at its widest. The ice age ends and the climate begins to warm. Conifers and… Read More »Proto-mammals in Pangea
300 million years – 300 metres Climate is cooling due to the movements of continents and decreasing carbon dioxide bound by swamp forests. Glaciations cause… Read More »From swamp forests to coal
370 million years – 370 metres Fish and land flora diversify. Amphibians and insects appear in the fauna. The Caledonian mountain chain, as high as… Read More »Vertebrates crawl onto land
425 million years – 425 metres First vascular plants evolve. Placodermi, the first vertebrates with jaws, and the cartilaginous fishes, the progenitors of sharks and… Read More »First vascular plants