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Timeline of Plant Evolution (wiki) - Photosynthesis Horseshoe Crab are marine arthropods invertebrates of the family Limulidae, suborder Xiphosurida, and order Xiphosura.
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.
Carnian Pluvial Event 230 million years ago it rained for 2 million years.
Mammals Evolve - Dinosaurs Evolved and lived for 180 Million years (over 700 types).
Dinosaurs are a diverse group of Reptiles of the clade Dinosauria that first appeared during the Triassic period, which was a geologic period and system which spans 50.9 million years from the end of the Permian Period 252.17 million years ago (Mya), to the beginning of the Jurassic Period 201.3 Mya.
The Triassic is the first period of the Mesozoic Era.
Bioevents either relate to diversification of a particular fossil group or a reduction, these may equate to speciation events or extinction events, or may only represent migration.Ions can be created, by either chemical or physical means, via ionization. Theia collided with another planetary-mass object, Gaia (the early Earth) around 4.51 billion years ago.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. That was when the Moon Formed, the Moon was twice as close then it is now causing 10,000 ft. Age of the Earth is approximately 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%).A major extinction, the Kellwasser event, occurred at the boundary that marks the beginning of the last phase of the Devonian period, the Famennian faunal stage (the Frasnian–Famennian boundary), about 375–360 million years ago.Overall, 19% of all families and 50% of all genera became extinct.