Timeline of Creatures

The evolution of all creatures
== Klaxozoic ==
* K-2025: Dr. FRANXX is asked to join APE to conduct a study on human immortality.
* K-2030: Dr. FRANXX achieves the method of becoming immortal via injecting humans with magma energy but it leads to infertility.
* K-2036: It is reported that humanity's immortality rate exceeded 70% and the rest would complete their surgeries in two years.
* K-2037: The Klaxosaurs made their first appearance, destroying a mining facility and making landfall, only stopping after several nuclear missiles hit it. The eastern half of the Australian continent became an exclusion zone. 
* Zero Two is born
* K-2122: 14 years prior - October 15th: Hiro is born
* Mid March: Squad 26 self-destructs to stop a super-Lehmann class klaxosaur but fail.
* Hiro and Zero Two reconcile and reconnect through Strelizia as Plantation 13 is being destroyed by the klaxosaurs.
* Parasite reserves drop to 60% due to the high number of casualties and more than a dozen plantations are destroyed. Plantation 13’s Mistilteinn survives.
* Nana's replacement says that they'll boot up the Star Entity (Hringhorni) the next day.
* The next day, the supposed final battle between the klaxosaurs and humanity takes place.
* The VIRM, led by Papa and the Vice Chairman, invade Earth and fight the klaxosaurs and parasites, resulting in countless casualties.
* The Klaxosaur Princess links with Hiro via Strelizia to activate Hringhorni and fight VIRM but is infected by a virus designed as a bomb.
* The princess sacrifices herself, allowing Hiro and Zero Two to reconnect and Strelizia evolves into Strelizia Apath, forcing the VIRM to retreat.
* May 7th: The parasites work to survive by planting crops.
* May 10th: Squad 13 and the 9’s battle the VIRM in space.
* Alpha Nine sacrifices himself to save Hiro and the other 9’s are killed by VIRM.
* Hiro and Zero Two reunite and leave through a warp gate to eliminate VIRM for good.
* July 19th: 70 days after the gate passage, Hiro and Zero Two fight an armada of VIRM.
* July 21st: 72 days after the gate passage, the parasites begin cultivating a self-sufficient lifestyle.
* July 1st, 2139: 783 days after the gate passage, Hiro and Zero Two sacrifice themselves to destroy the VIRM planet.
* July 10th, 2147: 3705 days since the gate passage, Squad 13 reunites and reminisce Hiro and Zero Two during a school ceremony for their children.
* The earliest known prehistoric Pokémon existed at this time. It is possible that the Mew population may have decreased at this stage, as they slowly gave way to other Pokémon species.
== Phanerozoic ==
=== Paleozoic ===
* In a vortex of complete chaos and nothingness, a single Egg comes into being, which then hatches into Arceus, the first being in existence. Arceus then creates time: Dialga, space: Palkia, and anti-matter: Giratina. However, Giratina, as punishment for its destructive nature, is sent by Arceus to live in the Distortion World. Dialga and Palkia then succeed in creating the universe and Pokémon world and retreat into their own dimensions afterwards.
* Animals and Monsters roamed the Overworld while humanoid Pigmen lived in special villages in the Skylands where they must protect themselves from Giant Zombies and worship the Red Dragon. In the Nether, Zombified Pigmen ruled the fiery landscape with cry ghosts and sentient magma.
* Arceus then creates knowledge: Uxie, emotion: Mesprit, and willpower: Azelf; they'd then share these three traits to all living creatures that'd be born in the universe. Eventually the three dive into caves at the bottom of three lakes in Sinnoh: Lake Verity, Lake Valor, and Lake Acuity, giving them the name "lake guardians".
* Primal Kyogre and Primal Groudon are formed by the primal energy in the Hoenn region and then proceed to fill the sea and create land, respectively. A chance meeting turns the two into rivals, and a conflict for dominance over the Pokémon world begins. This battle continues until Rayquaza quells it, causing Kyogre and Groudon to retreat to special caverns, where they rest in for years. The Red and Blue Orbs are created to prevent the reawakening of Kyogre and Groudon, and are left at Mt. Pyre for safekeeping. At this time, Mew may have been plentiful and lived in large numbers. Rayquaza flies around the ozone layer, protecting the planet from asteroids.
* Landmasses such as Mount Coronet are created, and Regigigas moves the continents, forming the regions, and creates the three giants, Regirock, Regice, and Registeel, out of clay, ice, and magma, respectively. At some point, Regigigas also created two more giants, Regieleki and Regidrago, out of a cluster of electric energy, and crystallized dragon energy, respectively.
* The Sinnoh region is created around Mount Coronet. During this violent procedure, Stark Mountain is created due to shifts in the crust of the world, and Heatran is formed in a pool of lava. Arceus creates the Adamant Crystal, the Lustrous Globe, and the Griseous Core, artifacts connected to Dialga, Palkia, and Giratina, respectively, before falling into a deep slumber in its own realm.
* 300,000,000 years ago: Genesect's original version lived in this era lacking both its steel type and cannon it'd gain after being enhanced in the future. Kabuto and Kabutops also lived in this era in the sea.
* Added air (not officially a block at the time), stone, and grass blocks.
* The Nether was called the Ice Aether at that time.
* Before the piglins invaded, the Overworld was at total peace. Zombies and Villagers could live in harmony, and even the cats and Creepers could interact without explosions. The Hosts were somewhat godlike beings that oversaw the creation of the universe. 
* Hundreds of millions of years ago: Carbink begins its undisturbed underground sleep after its birth. It was born from deep underground temperatures and pressures.
* Species such as Omanyte, and its evolution: Omastar, Aerodactyl, Lileep, and its evolution: Cradily, Cranidos, and its evolution: Rampardos, Shieldon, and its evolution: Bastiodon, Tirtouga, and its evolution: Carracosta, Archen, and its evolution: Archeops, Tyrunt, and its evolution: Tyrantrum, and Amaura, and its evolution: Aurorus were all supposedly widespread. They all ultimately went extinct, but not before Archen gave rise to bird Pokémon and Tirtouga gave rise to turtle Pokémon. Shellder also appear to exist in this era, being preyed by Omastar.
* Relicanth is said to have existed in this era as well, remaining unchanged until the present day.
* Anorith is stated to have existed in primordial seas, with its eight legs at some point developing into its known eight wings. This probably means its evolution: Armaldo, existed in that time as well.
* The original forms of the Fossilized Drake, Dino, Bird, and Fish are said to have existed in ancient times. The combined halves of these Pokémon would become Dracozolt, Arctozolt, Dracovish and Arctovish in the present day.
* The Area Zero Underdepths may have been formed by seismic shifts, according to Professor SadaS/Professor TuroV.
* Terapagos is said to have inhabited Paldea in a bygone era. It was thought that this species went extinct, having been caught up in seismic shifts, however, at least one managed to survive it by changing the energy in its body and turning into a crystal, laying dormant in the Area Zero Underdepths.
* 1,000,000 years ago: The Great Crater of Paldea is formed.
* A meteorite containing Eternatus fell in the Galar region.
* The first Claydol was brought to life from a clay doll.
* During the last Ice Age, the Mamoswine population flourished, then decreased when the Ice Age ended.
* Cyclizar existed in this era and lived alongside humans, being ridden by them so the Pokémon can be warmed up.
* At some point in the distant past, the Magikarp population mutates due to unknown reasons and becomes weaker.
* At some point after the Iron Age, Regigigas is sealed away in the Snowpoint Temple, and Regirock, Regice, and Registeel are sealed away at various points across the Hoenn region after years of human worship.
* 5,000 years ago: Gogoat is domesticated & humans begin using them for transport.
* Greenhouse gases in the Ice Aether causes the ice to melt, leading to the piglins to find a new world.
=== Mesozoic ===
* The first Claydol was brought to life from a clay doll.
* During the last Ice Age, the Mamoswine population flourished, then decreased when the Ice Age ended.
* Cyclizar existed in this era and lived alongside humans, being ridden by them so the Pokémon can be warmed up.
* At some point in the distant past, the Magikarp population mutates due to unknown reasons and becomes weaker.
* At some point after the Iron Age, Regigigas is sealed away in the Snowpoint Temple, and Regirock, Regice, and Registeel are sealed away at various points across the Hoenn region after years of human worship.
* 5,000 years ago: Gogoat is domesticated & humans begin using them for transport.
* the piglins invaded, and a Champion arose, selected by the Hosts themselves and given magical tools.
* The mobs that happened saved the overworld now have a taste for fighting, this turns them into the violent mobs in the present day, even the villagers were immune to this effect after being given the tools to fight a group of them would continue to have anger with them.
=== Zingic ===
* Porygon was created in 1995, as well as stating that 150 species of Pokémon have been discovered as of 1996, alluding to the player having completed their Pokédex in Pokémon Red and Green, thus implying that Pokémon Red and Green take place in either 1995 or 1996.