User:Rodinian Wiki/sandbox

(Please do not take this seriously this is only to inspire others to make their own systems and explore their imagination)

The Rodinian System is a system consistent of 2 Stars: Rodinia A and Rodinia B, and 6 planets orbiting both Stars: Rodinia AB-b, Rodinia AB-c, Rodinia AB-d, Rodinia AB-e, Rodinia AB-f and Rodinia AB-g

Basic information

The Rodinian system is situated 8.6 Light Years away from Earth in the heart of the constellation of Canis Major that is why the alternate name for the two stars are "Alpha Animus Canis Major" and "Beta Animus Canis Major" respectivelly. The two stars are both smaller than the Sun, Rodinia A being a K7V type star (0.6 Solar Masses and 0.594 Solar Radii) and can be easily spotted with its beautifull dyson swarm, while Rodinia B,, being a M9V type star is much easier to miss (0.292 Solar Masses and 0.29 Solar Radii). Rodinia B is an active M9V type star, being the reason of 3 mass extinctions on the 3 habitable planets (The great chill, the 2nd great chill and the Photon death)

Rodinia AB-b, the 1st planet

Rodinia AB-b also known as "Thalassa" by its inhabitants is the hottest, closest and densest planet in the Rodinian system (7.5g/cm^3), it also has the strongest gravitational pull (14.6 m/s^2). Like most planets it formed 4.7 billion years ago It's average temperature is 115*C (239*F), however it holds its water thanks to a thick atmosphere (surface pressure of 4.74 atm). It has a Radius of 1.09 Earths and a Mass of 1.75 Earths Life has managed to adapt to these conditions and thrived, the inhabitants are called "Thalassians" and are 2 million years more advanced than humans.

The History of Thalassa is rather "boring" on geological terms, it always was a water world, never having continents only tiny islands, but it was enough to allow animals to adapt both gills and lungs.

Extinctions in it's history:

-"The Great drowning": 447 Million years ago -"The Piscis extinction": 378 Million years ago -"The Great chill": 248 Million years ago -"The Photon death": 190 Million years ago -"The 2nd Great chill": 62 Million years ago

The "Lolligo period" The first period where life appeared was the "Lolligo period" (544-447 Mya) where the oceans were dominated by Non-vertebrates, the apex predator was the "Lolligo Titan" meaning Titan Squid, reaching 20 meters (around 65 feet)

The "Piscis period" The second period was the "Piscis period" (423-378 Mya) where the oceans were taken over by vertebrates (fish and then sharks), in the begining part (423-400 Mya), the apex predator was "Crocodilus Piscis" meaning Crocodile Fish, because it had scales on its back like a crocodile, in the end part of the period (400-378 Mya), the apex predator was the "Pulmonis Pistris" wich means the Lung Shark because it was the only shark back then to have lungs, this massivelly helped it as the oxygen in the air was easier to extract and it was more abunded.

The "Lacerta period" The third period was the "Lacerta period"(367-248 Mya) where the oceans and small islands were dominated by reptiles, the biggest predator back then was the "Rex Lacerta" wich was a giant lizard that spent most of its time on the islands so its bones were hollow, like birds today.

The "Corallium period" This period was the weirdest period, where coral grew to exponential sizes, in size and surface they covered (246-190 Mya), this was the most harmonious period as no animal dominated another, this era ended abruptly, when Rodinia B became very active and shot solar flares everywhere, weakening the planets's magnetic feilds and allowing more solar radiation to come through, killing a lot of plants/coral on all habitable worlds

The "Mammalian period" Mammals have existed on Thalassa since 251 Mya, but they were outshined by lizards and later coral, not anymore, as they have taken over,this period is the Mammalian period (183-62 Mya) animals representing whales and dolphins emerged, but they never were on land, so they evolved from the Lung Sharks, to give birth, but they do not breastfeed or have fur, the largest predator was the: "Baleana de profundis" wich means Whale of the Depths, these giant mammals reached 30.48 meters (100 feet) in size and they could dive deeper than blue whales on earth because they also have gills, the idea of having lungs and gills appeared 400 Mya, in the late "Piscis period". The "Thalassian period" This period is the current one (60-0 mya) this one is lasting so long thanks to the fact that, Rodinia B calmed down and that there wasnt a main apex predator anymore, this period allowed animals to evolve in crazy ways, and that is when, 4 mya, the Thalassians evolved from certain mammal species similar to dolphins, the exact species is unkown to us, once they appeared, a great shift in the foodchain began, they had gills and lungs, webbed legs and feet, thans to the fact that all animals had four fins/legs, this allowed them to harvest exotic plants on the small islands. 2 mya, they were at the same technological level as humans today, this is when all changed

"the War of the Three" This was a catastrophic war, the three habitable planets were at war with eachother, but while this war war raging, the previous "Rodinian Mythology" was replaced by Christianity, as what happened on earth with Christianity also happened on the three habitable planets 2 million years before.

Rodinia AB-c, the 2nd planet

Rodinia AB-c also known as "Iris" is the 2nd planet in the Rodinian system, it is the 2nd least massive (0.892 Earth Masses), it used to be the largest moon of Rodinia AB-d for most of its life (4637mya - 2 mya). Iris is the 2nd hottest planet in the system, with temperatures of 47.2*C. It has a radius of 1.01 Earths and a density of 4.81g/cm^3

History Rodinia AB-c formed 4637 mya when Rodinia AB-d collided with a planet around the same mass as earth named "Pele", this gave Rodinia AB-d more mass and formed Iris (Back then named Rodinia AB-c1 as Phaunus used to be Rodinia AB-c) Like Thalassa and Phaunus, Rodinia AB-c got hit by millions of asteroids from the result of 2 ice planets at the end of the system anihilating eachother, this brought water to the 3 inner planets and allowed for life to flourish.

Life on a moon Iris got life around the same time as Earth, only a few million years before it, and as Thalassa it had a couple of mass extinctions

-"The Lolligo period" extinction: 435 Million years ago -"The Piscis period" extinction: 379 Million years ago -"The Great chill": 248 Million years ago -"The Photon death": 190 Million years ago -"The 2nd Great chill": 62 Million years ago

The Lolligo period Most of the periods are named the same as they were dominated by the same animals, like the Lolligo period, where non-vertebrates dominated, unlike Thalassa however, the dominant species here was the "Solea Cancer" also known as the horseshoe crab, unlike the one on earth this one is much bigger (1.5 meters or 4 feet 11 inches) and extinct, It liked to eat plants and smaller animals.

The Piscis period Like on Thalassa, this period was dominated by fish, there wasnt a sole predator but the closest one to an apex predator was the popular Piranah, that still exists on Iris today.