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Gondwana formed prior to Pangaea, and later became part of it.
Shape of the Universe - Photo GN-z11 high-redshift galaxy found in the constellation Ursa Major, and is currently the oldest and most distant known galaxy in the observable universe - 13.4 billion years old. Mostly Molten Rock Theia collided with another planetary-mass object, Gaia (the early Earth) around 4.51 billion years ago. New type of Green Algae produced O2, which created the Ozone Layer that protected life from damaging UV Rays and gave life a chance to progress.
Records of the appearance and disappearance of particular taxa at a single locality are insufficient to define a bioevent.
Late Devonian Extinction was one of five major extinction events in the history of the Earth's biota.
Pangaea started braking apart about 200 million years ago.
G Plates Earth Byte India broke away from the other fragments of Gondwana and began moving north.
This chert, formed in volcanic hot springs, preserved several species of early plants in cellular detail by petrification.
Paleozoic Timeline of Plant Evolution (wiki) - Photosynthesis Horseshoe Crab Living Fossil is an extant taxon that closely resembles organisms otherwise known only from the fossil record. Carboniferous is a geologic period and system that spans 60 million years from the end of the Devonian Period 358.9 million years ago (Mya), to the beginning of the Permian Period, 298.9 Mya. Hangenberg Event is a bioevent that occurred at the end of the Famennian epoch (late Devonian) associated with the Late Devonian extinction (roughly 358.9 ± 0.4 million years ago); Bioevent is an event recognised in a sequence of sedimentary rocks, where there is a significant change in the biota as recorded by assemblages of fossils over a relatively short period of time.Cretaceous–Paleogene Extinction Event is also known as the Cretaceous–Tertiary (K–T) extinction, was a mass extinction of some three-quarters of the plant and animal species on Earth that occurred over a geologically short period of time approximately 66 million years ago.With the exception of some ectothermic species like the leatherback sea turtle and crocodiles, no tetrapods weighing more than 25 kilograms (55 lb) survived.Marine Biology , in the late Proterozoic, oxygen levels in the oceans and atmosphere increased dramatically.By 600 million years ago, the oxygen in the atmosphere reached about one-fifth of today’s level (21 percent).- Galaxies - Space - Black Holes - Earth - Planets - Moon - Stars - Sun - Solar System Magnetics - Gravity Extra Terrestrial - ET - Space Aliens - Probes Space Station - Space Shuttle - Space Travel Satellites - Asteroids - Telescopes Time Measuring Pyramid of Complexity Science - Physics The photo on the right is not a Selfie.