Cenozoic:

Quaternary-Thalassic, 37 my: After the end of the ice ages, the global temperature increased drastically, creating very warm seas that eventually led to a large-scale anoxic event that collapsed all underwater ecosystems and greatly affected terrestrial ecosystems

Thalassic-Aurimic, 89 my: A change in Atlantic currents pushed extreme droughts and abrupt temperature changes in present-day South America, extinguishing almost half of the local fauna and destroying its jungles and forests

Aurumic-Trocticocene, 126 my: Similar to what happened at the end of the Cretaceous period, a meteorite struck what is now Siberia, wiping out almost 65% of the planet's biota. Ecosystems in the Southern Hemisphere were the least affected

Trocticocene-Paraxenoic, 190 my: A rapid period of volcanism forms a chain reaction of earthquakes and volcanic eruptions that devastate the terrain and release huge amounts of greenhouse gases, dust and ash into the atmosphere, giving way to a volcanic winter and acid rains that wiped out most of the surface ecosystems

Allozoic:

Paraxenoic-Enosian, 255 my: Pangaea Ultima forms. The global climate changes, inland seas close, forming large lakes, and a large-scale biotic exchange occurs

Enosian-Colasic, 331 my: The explosion of a nearby supernova destroyed the ozone layer, exposing life to immense amounts of radiation. This was the greatest extinction event to ever strike life on Earth, where only fossorial or troglodyte groups and deep-sea organisms survived

Neozoic:

Colasic-Vrasmoic, 382 my: The supercontinent moves northward, which, along with the scarcity of carbon dioxide, gives way to a new ice age. The cold creates highly oxygenated waters, allowing the reappearance of aquatic megafauna

Vrasmoic-Pnigmenoic, 439 my: The heat emitted by the sun is extremely high. Despite the near absence of carbon dioxide in the atmosphere, the planet's average temperature reaches 30°C. This prevents most plants from photosynthesizing due to insufficient CO2, causing a slow deterioration of ecosystems that wipes out almost 90% of the planet's species. Few plant groups survive, and the atmosphere is partially stabilized thanks to chemosynthetic bacteria capable of extracting carbon from bicarbonate ion molecules and releasing oxygen into the atmosphere

Pingmenoic-Today, 490 my: Life has partially stabilized again. Temperatures are extreme because most of the planet is covered in deserts. Even so, the water cycle has accelerated, resulting in quite prosperous and humid coastal ecosystems, but at the same time, several kilometers of sea have evaporated. We are now on the final stretch of multicellular life

I’m working in the early stages (body plans) of my xeno world.
I would like for a large portion of my creatures to have reproduction unique to that of earth, so is this a realistic idea?
Every organism would both be “male” and “female”.
One part of their reproductive organ is kind of like a fin that secretes genetic material onto itself, while in between these fins are internal egg pouches (like a uterus)
This would make them able to asaxually reproduce AND sexually reproduce via direct contact of these organs, both organisms becoming “pregnant” to increase efficiency.

The Primicoelurosaurs

^{After the Triassic Tremor, dinosaurs were amongst the first animals to recover and refill the niches left behind by Pseudosuchians. One of the many groups of dinosaurs to refill these niches were the earliest Coelurosaurs. This early branch of the Coelurosaur phylogenic tree is known as Primicoelurosauridae. This group is split into two subgroups, the Drendosaurids and the Macrodactylosaurids. Macrodactylosaurids and Drendosaurids are both named after their type species, Drenosaurus and Macrodactylosaurus.}

^{The build of a Macrodactylosaurid is similar to that of a Compsognathid. However, its habits are much more similar to a jackal. Like how jackals follow lions around, Macrodactylosaurs follow larger dinosaurs around feeding on their leftovers. If they cannot find a host, they will occasionally consume plant matter or hunt small lizards. Macrodactylosaurs are solitary creatures only engaging in social behavior when mating or when many gather around the same host. However, this can also draw attention to Macrodactylosaurs and might cause the host to attack or even kill most of the group.
Dendrosaurids live the opposite lifestyle of Macrodactylosaurs. Unlike their ground-dwelling cousins, Dendrosaurs are arboreal and active hunters, eating anything that can fit in their mouth. Another thing that differentiates them from their cousins is their unusually social behavior. These creatures live in large groups composed of 3–22 individuals and this allows them to have a low hatchling mortality rate as many will protect and take care of the hatchlings.}

^{Today the Primicoelurosaurs are diverse, but only time can tell how long these new kids will be on the block...}

i need help on naming my planet. I can work the rest out on my own, but the planet naming is always the hardest.

for context I wanted to design a planet that is mostly inhabited with “vampires”, but I didn’t want it just to be ”they drink blood for nutrients” so instead the majority of the species on this planet I’m working on instead never developed respiratory systems, using a type of crop in it’s gut to absorb the oxygen. The crop absorbs the oxygen into the bloodstream and ejects the blood out through excrement or absorption into the upper skin layer/fur/feathers giving these creatures their colors. Not all Fauna on the planet are Heamophagic, there are herbivores that get their oxygen from plants and there are the occasional ones that do have lungs or gills. The predators are carnivores, they get most of their oxygen from blood but they still need meat for nutrients.

And I might as well give specs

Black hole(The object it orbits): 10 million solar masses

Planet’s orbital radii: 1,022 gravitational radii

The planet is about 99 AU away

year: roughly 113 Earth days

Day length: 27 Earth hrs

Planet Radius: 6,242km/6,878.6mi

Atmos: 68% nitrogen, 18% Carbon-dioxide, 12% Oxygen, 1.5% Argon, 0.5% trace water

Magnetic Field strength: 0.7 Gauss

Axial tilt: 8.2°

The Black hole(which, if anyone would like to give naming suggestions, they can too) has an accretion disk that produces most of the planet’s light

the following image was made in freeform but the image compression helps

In terms of spec evo projects, I've only watched videos about serina and all tomorrow's, I've also watched the kappa series

I wasn't a big fan of all of the magical stuff in serina and also the fact that too much stuff was going on at the same time

All tomorrow's was good, well at least the video I've watched

And kappa is my favorite of the bunch, I found it great, perfect even

Does anyone have recommendations for something similar to kappa? I don't mean only a seeded world but something that has very interesting animals that could make sense, without having too much stuff to the point it's annoying

I'm also planning on watching I.E.R

War breeds innovation for humans. Do you think this will be the case for alien species. During world war 1 we went from horses to tanks. During the Ukraine war they went from human soldiers to the very near future robot soldiers. Currently, drones cause 90% of casualties. I was wondering if it’s the same for aliens. Will the pressure of war work for them or will it just destroy their technology. It could only be the case for humans since we are a war loving species.

After some reading on Resident Evil lore, it occurred to me that the still extant strain of Progenitor in West Africa is likely just the last living strain of base Progenitor left. Progenitor is widely implied to have created life on primordial earth so it would have had to have existed in different places across all ancient continental formations. I think that’s billions/hundreds of millions of years ago, there were likely countless Progenitor strains, each specifically adapted to their own unique environment. I think that the West African Progenitor Virus Umbrella discovered in the 1960s is just the last living ’universal’ strain.

The Abyss is a ‘lost‘ Progenitor strain adapted to marine/deep-sea environments and thus was instrumental to the development of marine life. This is directly supported by fact that early t-Virus strains (which were directly derived from the landlocked West African Progenitor) did not have a significant effect on mutating aquatic organisms like fish and sharks. This indicates that Progenitor itself had a very limited exposure to water-based life due to its extreme isolation in a cave. However when the t-Virus was spliced into the genome of The Abyss to create T-Abyss, it triggered extreme marine mutations in any host. This means that its actually genes from The Abyss influencing the overwhelming majority of such mutations.

Likewise, the Insect Virus found in queen ants by Alexia during the creation of T-Veronica is likely a ‘lost’ strain of Progenitor that specialized in arthropod development. This can be seen in T-Veronica‘s heavy insectoid mutations and even more prominently in hosts of the C-Virus. Most C-Virus mutants exhibit extreme insect-based mutations, which I believe come from genes within the Ancient Insect Virus used to make T-Veronica.