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Present Setting: As Rienia enters the Late Magedivatian Era, another tectonic shift shakes up the flow of life on the Moon. This latest shift in Rienia's tectonic plates has helped to fully establish the global thermohaline circulation of the world's oceans. As a result, the planet begins warming a solid 2°C releasing much of the land and sea from the cold grips of the ancient ice age of the Sulioaic Era. With the oceans now being interconnected by a global current, marine life throughout this era is able to easily migrate and take hold in many of the niches of marine habitats that have for so long remained relatively depleted in biodiversity. From the continental gulfs and the warm shallow seas around Rienia's landmasses, to the open oceans, and the massive abyssal canyons carved into the black depths of Rienia's crust; life is plenty of room in these marine habitats to flourish and diversify in ways only you could imagine.

--Planet Statistics--
Atmosphere: 77% Nitrogen, 14% Oxygen, 3% Helium, 2% Carbon Dioxide, 2% Sulfur Oxide, 2% Other Gases
Average Global Temperature: 74°F (23°C)
Tectonics: Present; 20% less than Earth
Volcanic Activity: 10% more than Earth
Weather Systems: Turbulent Storm Systems

--Size Increments--
• Size 1: Sugar Ant (0.1 - 1 cm)
• Size 2: Bumblebee (1.01 - 2.5 cm)
• Size 3: Mosquitofish (2.5 - 5 cm)
• Size 4: Poison Dart Frog (5 - 10 cm)
• Size 5: Giant Water Bug (11 - 20 cm)
• Size 6: Birdwing Butterfly (21 - 35 cm)
• Size 7: Horseshoe Crab (35 - 70 cm)
• Size 8: Australian Trumpet Snail (71 - 100 cm)
• Size 9: Japanese Giant Salamander (100 - 150 cm)
• Size 10: Aldabra Giant Tortoise (150 - 200 cm)
• Size 11: Leatherback Sea Turtle (2.01 - 2.5 m)
• Size 12: Mekong Giant Catfish (2.5 - 3 m)
• Size 13: Giant Pacific Octopus (3 - 4 m)
• Size 14: Ocean Sunfish (4.1 - 4.6 m)
• Size 15: Tiger Shark (4.6 - 5.2 m)
• Size 16: White Sturgeon (5.2 - 5.8 m)
• Size 17: African Elephant (5.8 - 6.5 m)
• Size 18: Great White Shark (6.5 - 8 m)
• Size 19: Manta Ray (8.1 - 9 m)
• Size 20: Porites Coral Reef Colony (9 - 10.5 m)
• Size 21: Whale Shark (10.5 - 12 m)
• Size 22: Gigantosaurus (12 - 16 m)
• Size 23: Blue Whale (16.1 - 22 m)
• Size 24: Brachiosaurus (22.1 - 30 m)
• Size 25: Smaug, The Desolater (30m+)

Regional Evolution Rules, Dossier for Organisms, and Blank Template in the next posts.

File: Reinia Marine Ecology Dossier.pdf (1016 KB, PDF)

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Blank Template will be on the last post I make. Attached here is Dossier for all the Marine Organisms of Rienia. Should tell you everything you need to know about each organism.

--Organism Advancement--
> Marine Organisms are allowed to freely migrate between each of the identified habitats.
> Organisms that can be found in all habitats are not discouraged, but are not too realistic in current biological standards. Feel free to make you case and prove me wrong though.
> Plant Organisms may be as large as the size 18 increment as stated here
> Animal Organisms may be as large as the size 16
> Carbon-based nutrients/minerals, along with Silicates, Calcium, Iron, Zinc, Selenium, and Organic Compounds are now present in the environment and may be incorporated into an organisms diet/evolution if desired.

--Marine Evolution Rules--
> If necessary, specify which landmass/geographic area an organism exists in. (This is heavily encouraged, but not a requirement).
> An evolution that impacts the same organism throughout the whole region is allowed, but must be specified in your post.
> Organisms from the Shallow Seas/Continental Gulfs are the only organisms that can potentially live in brackish waters or be euryhaline.
> Oragnisms from the Open Oceans/Pelagic Floor are the only organisms that can grow to the size 23 increment.
> Organisms from the Benthic Abyss/Deep Seafloor are the only organisms that can have extreme lifestyles such as slow metabolisms, or unique dietary habits.
> Organisms from the Polar Seas are the only organisms that can be amphibious organisms.
> If you as a creator wish to establish the existence of a new ecosystem, feel free to specify this and post what organisms would belong in this new ecosystem.


--Additional/Misc. Stuff--
> The following geographic locations still need names. Feel free to give them a name at your leisure.
- Region 1,2, 3
- Ocean 3
- Sea 2 & 3
- Gulf 1 & 8
- Isles 1, 3 & 6
- Island 1
- Estuary 2
- Lakes 1, 2, 3, 4 & 5
> This is a one-man job I've been doing here for the most part. If you think and/or want to provide me with resources to help improve the quality of information we have for the worlds (Food Webs, Trophic Levels, Mapping of individual Landmasses, Etc.) this would be welcomed and greatly appreciated.
> Fanart is also accepted, and low-key encouraged.

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And last but not least. Here is the Blank Organisms Template. That's it I'm finished spamming the opening thread.

Enjoy the thread fellow creators, and I'll have the first Phylogeny Chart up in a couple days.

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>>1637195
Some Trocket on the deep seafloor develop longer sharper claws. They use the serrated edges of these claws to sheer off strips of flesh from prey as they jet past, which they can then feed on. If they remain hungry they can just spin round for another run and cut off some more flesh. Sometimes swarms of Trocket will get together and attack the same animal, stripping it of its flesh in minutes.

>>1637241
Also, I reckon Gulf 8 should be the "Redlad Gulf"

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The Long Hawa's side fins grow larger and stronger, allowing it for longer "flight" as well as an increased amount of flight control. The concentrations of cells on its front slowly develop into increasingly robust light receptors. Now, an abilito to close them temporarily with primitive eyelids, allowing the creatures to take short rests while safe in flight.

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Some Nostril Hawa in the deep seafloor develop hair like growths along their head to feel disturbances in the water from nearby predators. While still not fast, the forwarning allows them to survive what would be lethal attacks.

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Singed Bryum develop a more complex root and vine system, which not only allows them to collect methane and other substances neecsary for their chemosynthesis from the substrate instead of the thermal vents, but also let's them "restore" and create more connections between plants. This new ability lets them create more complicated "networks" of resource trading and sharing, which leads to bigger colonies, longer livespans, and bigger sizes.

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The Smolodark living in the deep seafloor are forced to develop a taproot in order to store what little energy they are able to produce out of the small amounts of sunlight that reach the Abyssal Trenches.

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A mutation that caused the Coastal Petraroc to lose their stalk came with an unexpected advantage; a malfunction in the mitochondria that causes the plant to produce unbelievable amounts of heat. This proves extremly useful in the polar areas of the moonworld, where sunlight is widely available and a lack of competition caused by the freezing temperatures of the water, which are of course no obstacle for the Genevan Petraroc.
It's size has been limited however, and the plant's sexual organs have become hard to reach and pollinate. In order to combat this, the flower generates meat like odors that can be smelt miles away, due to the fact that hot gases spread faster.

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Smolonyum living in the pelagic floor begin growing multiple "Crowns" from a single stalk, which speeds ups it's reproductory cycle and allows them to grow bigger.

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>>1637195
The front feelers of some Melswirm become articulated and develop a solid spike on their end. This allows them to defend themselves from small predators and gives them something to hold food with.

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>>1637241
Some blue swarmeli become more solitary, relying on increased size and armouring to repel predators. These new meli lose their tails, becoming benthic, and increase their dietary range to include other benthic plants.

They are still social, but now live in smaller adult groups of around 15 individuals; though juvenile groups tend to be larger.

>>1640864
Oh, the habitat is the seafloor of the open ocean and shallow seas, not including the polar seas.

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Some Basal Troc evolve to have longer bodies, and hunt prey by burying themselves in soft sediment and quickly striking with their claws when prey comes nearby. They are colored to approximate both plants and sand.

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>>1637241
>>1637195
The scrota found in the oceans grow longer, making it a better swimmer. The amount of red pigment in its skin also increases, a result of the creatures sight in combination with sexual selection.

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>>1637195
The sight of the Colonial Hawa improves, giving it an almost 360 degree FoV. The physical results of this is the eye-stalks becoming larger and now being more orientated to the side of the head.

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>>1637195
The Collonyum on the pelagic sea floor evolves an alternative, non sexual way, of reproducing. Similar to strawberries they create off-shoots through their lamp-vines. These Collonyum usually remain connected by the vines, unless severed. This creates a messy tangled mess where these collonyum grow.

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>>1637195
>>1637241
The Paddlefin Melscorp's fins grow even larger, making it more adept at swimming.

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>>1641350
In this new species of colonial hawa, the males are larger and more elongated than the female. These males are nomadic, swimming through the open ocean between the colonies and thus helping to ensure a healthy genetic mix amongst the population of the area. The males are born in a ration of 1:3 as compared to the females; when not breeding, they feed on collonyum and other leafy plants.

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>>1637195
Swarmeli in the near shallow waters near the coasts begin building small nests under the sand. They develop longer bodies and a spade shaped head to facilitate the building of them. They begin scavenging in larger packs, leaded by an Alpha individual, usually a female, that is slightly larger than the rest.

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>>1641264
The Garden Troc's fins elongate in order to facilitate camuflage, and it develops small "Nails" on their pincers, to help them dig.

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>>1638165
Some Trockets begin depending on a carrion based diet. They lose their claws, and replace them with sharper teeth, a more elongated and streamlined body that allows faster speeds, and more suited fins for their jet movements.

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Telili that wander off to the deeper parts of the oceans are eventually contaminated by Byrock Chimneys over time. These specimens eventually evolve a symbiotic bond with them, replacing the highly effictive chemosynthetic Pararocs with the awkward rock-like plants. This relationship turns the Telili's lifestyle around. Their bodies grow shorter, as most of them are agresively "fosilized" by their new symbiont, and they usually stay still for weeks, even months, migrating away from the volcanic trenches only to lay their fragile eggs in safer enviroments.

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>>1638744
The Coregent Smolonyum develops large bulbs in place of its stems, using these to store energy and nutrients. It also grows tough, leathery skin which makes it more difficult to eat.

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>>1637174
Schools of Reagalikot that migrate to the north become accostumed to life in the tropic, where a lack of glaciars and higher salinity lead to the loss of the hind fins (That were adapted for a semi-amphibous life) and the prolongation of the tail fins, allowing for better manuevering in the water.

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The Elder Reagalikot has no natural predators as an adult, but the soft eggs that they lay are fairly vulnerable. This is compounded by the fact that they have long gestation times and must invest a large amount of resources into reproduction. To combat this, they develop a thick, stony shell around the egg, which also secretes a glue-like substance that traps sand and other sediments to aid in camouflage. The egg is impenetrable to almost all other ocean life, and can only be opened when the mother returns when conditions are favorable and uses her massive jaws to crack the shell in half; in the meantime, the developing young is capable of filtering water in a clam-like manner and can potentially survive a couple of years without hatching.
Also they get better colors.

>>1641350
Some of these colonial hawa make the transition from collonyums to smollonyums.

This more exposed environment favours a seasonal reactivation of the embryonic eyestalk- and eye-growing genes, causing a new eyestalk to be sprouted from the head of these hawa every summer. Their increased vision helps them to detect danger, as different eyes can focus on different areas rather than having to "manage" with a flat 360 degree view.

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>>1646163
What do you call a fish with five eyes?

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>>1646167
fiiiiish


>>1641481
As the paddlefin grows, it also has to streamline against the water resistance.

AS its fin grows further back, one of its eyes idisappear, but the other two are now stronger and can more clearly look forward, making the single front facing eye less important.

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>>1637195
the swarmelli in the abyssal Trenches find warmth around the byrock chimeys, but the added danger of steaming hot gasses and boiling water makes protection necessary: So they make a habit of building masks out of dead byrock, fusing them with sticky saliva and wearing them until they outgrow them.

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Some Snowca in the Northern Hemisphere begin to feed upon the eggs left by the Elder Reagolikot. Their fin grows larger, allowing them to pull larger objects. They drag the camouflaged eggs to smaller holes where they can then use their tongues to tear the eggs apart through the water filtration membrane the egg uses.

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Bristled Hawa living near thermal vents begin excreting a sugary substance that encourage the growth of a heat resistant, chemosynthetic bryum (Most likely a Pararoc subspecies), forming a protective coat over their bristles. Their lateral fins move to their underside, and so does their mouth. They now fill the role of "cleaning" Byrock Chimneys and not inhabited thermal vents by getting rid of the more toxic and corrosive minerals. A process they fulfill by eating them, and then feeding them to their symbiont, which break them down to "safer" molecules.

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>>1640723
The Melswirm's helmet becomes smaller, giving them increased swimming speeds to help escape predators. The rest of their feelers become articulated, and develop a clearer distinction between the "arm" and the "forearm"

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The Macadamia Halikot's are a Knife Headed Halikot subspecies that has evolved a different knife head in order to have a better grip on the Byrock-armored creatures that live in the deep sea, and smash their "shells" open. Their size slightly decreases, and they often live as guests in Knife Headed Halikot's schools, since their new knives only allow them to eat Rockeli and Sessile Telili, which aren't preyed upon by their cousins, filling a new niche.

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>>1637195
>>1637241
Some Dueling Halikots further specialise in hunting their cousins, the knifeheaded halikots>>1637241
and their off-shoots >>1650835
. Their "swords" evolve into twisted "spears/stakes". Using these they slowly move through the dark depths of Rienias oceans until they come across their prey. Then they ambush, quickly charging at the animal and spearing it on the newly mutated extremity.

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>>1646167
Seeing as the smolonyums >>1643406
are much tougher than collonyums >>1641464
the Eye-stalk Hawa evolves a mouth more capable of biting through the thick defenses of the plant. The mouth also mutates to have cartilage with two joints/sockets allowing the Hawa to fold the mouth in, similarly to the picture, as well as manipulating objects more skillfully.

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A branch of Pararoc & Telili develops which focuses on photosynthesis. The Telili grows smaller, and has adapted to clutch to rocks or other sediment with little movement over its entire life. When threatened, it can withdraw the Pararoc within its mostly hollow exoskeleton, gripping tightly to make removal difficult for potential predators. While the plant half is still somewhat capable of chemosynthesis via a series of gill-like frills on its abdomen, this is mostly used to procure otherwise uncommon nutrients from the water.

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Alrighty folks, been kind of a slow thread, but here are the Phylogeny Charts for Marine Life evolution thus far.

(1/3) Bryumidaes only

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>>1653722
Phylogeny Charts (2/3) Hawaiiforms Only

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>>1653723
And Phylogeny Chart (3/3) The Melidae and Trociiform clades.

Expect a biodiversity event similar to the one on Janus later today.

>>1637195
Some Female Tempestuous Halikot develop thicker, sturdier and heavier head blades, making them less likely to break whilst in combat, though this has the side effect of slowing them down a little. In the mean time males begin to develop a pair of lengthened canine like protuberances to aid them in killing prey, similar to those found on the females.

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>>1653760
forgot pic

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The Dragging Snowca's tongue splits into many smaller fibers, allowing them to scoop more out from the inside of the eggs they consume. While lying in wait, they often leave their tongues in the dirt of the ocean floor like nets to capture smaller prey that floats by.

>>1637195
The bodies of the Arctis Regealikot thicken with blubber to keep them warm in the oceans around the south-pole of Reinia and their tail flippers fuse in an attempt to counter the increased weight.

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>>1657241
forgot pic

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>>1657245
The Arctis Reagalikot's posterior fins become stronger and longer, the same happens with it's tail flippers

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>>1637195
Bryum living in the Polar Seas have little to no acess to light, in order to fight this, they begin growing vertically, focusing on soft thick stalks where they store energy.

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>>1644787
The Mensh Regealikot's back fins grow even bigger, become slightly translucent and begin from the torso instead of the tail of the animal, all of these changes are so they can outrun their predators, and easily chase their prey. Their jaws become smaller, adopting "double" rows of sharper teeth to compensate. Their jawbone slightly deformates because of this.

>>1646167
Ophibania?

>>1658743
Do you mean Opabinia? I knew the organism you meant but I couldn't remember the name; it took me a while to find it on Wikipedia.

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--World Event: The Last Blooms of Life's Origins-- Since the beginning of complex life on Rienia, its original organisms have continued to exist unchanged throughout the eras...Until now. Towards the close of the Magedivatian Era, the genetic code that made these base organisms of Rienia so malleable for life to flourish from, begins to breakdown rapidly. Within just a few million the Base Bryum, Hawa, Meli, and Troc would fade from existence on Rienia. This would not be before these Base Organism created one last burst of divergent evolutions that are ubiquitous throughout the marine climates of Rienia.

--EvoGame Impact--
> At midnight EST, the Base Bryum, Hawa, Meli, and Troc, will permanently be removed from Rienia, only to exist in name and fossil records. So this is your last chance to make a new organism out of the Basal organisms.
> 12 new organisms have been released into world of Rienia. They can be found in any Marine Habitat, and they are in need of the creators touch, in order to remain in the world of Rienia by the end of Magedivatian Era.

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>>1659005
did an fanart

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The Dragging Snowca's claw grows larger and duller to crack through the hardened shells of the Melibuto and the Elder Regealikot eggs. It's tongue continues to branch out into a more weblike network which is lays outside to ensnare the legs of wandering prey before dragging it back.

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Horsetail Bryum in the continental gulfs and shallower waters develop larger and flatter bulb sprouts to collect more sunlight.

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>>1661717
The Horsetail Bryum lose their spore pods, replacing them so they can grow more bulb sprouts. They now reproduce using special sexual organs located in their roots

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>>1661717
Some Horsetail Bryum's spore pods grow along their bulb sprouts to expose them to the ocean currents their leaves are blown in.

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--Era Ending Event: The Shadow of Fate. The Nomad Arrives--
As the two moon worlds reach the end of Magedivatian Epoch, it is met with another period of abrupt geological shifts both in the oceans and on land. In just few ten-thousand years, the basal organisms that had been a stabilizing factor to life on the moon worlds fade into history, only to be remembered in sands of time. This event causes a gradual collapse of food webs, killing off organisms that had generally remained dependent on these basal organisms, or simply found themselves outcompeted by more specialized organisms. This loss of keystone organisms coupled with geological shifts, such as the now expanding abyssal rifts of Rienia's deep seafloor, and the gradual intensification of volcanic activity around the Eamoht and Hepatia Isles is setting the stage for yet another imminent mass extinction.

But life is none the wiser to these changes to its fragile biosphere, simply acting as idle participants to the downward tailspin of Rienia's global ecosystems. But fate had other plans for the worlds of Janus and Rienia, as one day the radiant light of Lunt, is suddenly blotted out by a massive shadow in the sky, emitting a faint blue light.

Such an event even I could not have anticipated, as I gazed from own vessel in awe of the familiar figure looming over the sister moon worlds. I recognized this behemoth that had happened itself on these two worlds, and I knew from my own history that life on Janus and Rienia would be changed forever. It is called by my species "The Nomad"; a self sufficient mega-installation surmised to have been created by a precursor race that has roamed the known galaxy for an unknown period of time. It is a Dyson Sphere that seems to have either the self-designated, or a chosen directive given by its creators the purpose of nurturing and proliferating life throughout the galaxy.

Powered by a neutron star, almost double in size in comparison to Seostea, and equipped with the technology and an armada of drones that allows the Nomad to terraform and mold the geology and biosphere of young worlds, giving complex life here the opportunity to grow, and advance to even the point of sentience. And just as my own world has documented the presence of the Nomad's hand in our ascent to sentience, it now appears here too, the Nomad will now play a role in the future of life on Janus and Rienia; for better, or worse.

>>1664622
The Gravity of this thing alone will fuck us.

>>1664622
That's a... little bigger than I was expecting.

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>>1637195
The bluemelli on the Pelagic floor develop a tail to disturb the ground and dig for roots and nutrient rich reproductive organs of the horestail bryum >>1662059.

This tail being very articulate, it brings with it the possibility for the bluemelli to use it to communicate, which leads to a new kind of social structure in the tiny creatures, with hundreds of them forming bands that use their tails to communicate the location of food, or to warn of predators.

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>>1659005
The Harlequin Trocimp develop a pair of slim articulated Hind limbs. These allow them to grip onto the stems of plant life and ambush their prey from among the leaves of plants like Singed Byrum and Collonyum

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>>1659005
The tails pf the Battery Meli split into three. This not only increases their movement speed but also allows the Battery Meli to extend the range of their static field by moving the new side tails (which can generate this field) into different positions.

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>>1649570
the paddlefin melscorp's mandibles duplicate, resulting in a large mouth which it uses to swallow plants whole instead of just nibbling on them.

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>>1666226
The Battery Meli develops a "reciever" organ in it's shell that allows it to communicate more effectively with it's peers using their static fields. They also develop a thin photoreceptive membrane around their flippers, which allows them to capture more solar energy

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>>1659005
The Melibuto becomes more elongated, its legs moving to the underside of the new parts. This in turn allows the Melibuto to move, and raise its "head" and look about more with its true eyes on its underside.

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>>1666656
The Melibuto's frontal legs become longer, allowing it to further raise it's "head" which has become bigger in order to alocate the animal's larger brain

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>>1666656
The Melibuto evolves a pair of Scythe-like appendages. These are used for cutting plants as well as to pathetically fight each other during the mating seasons (It is mostly for show).

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>>1667182
>>1667226
The two strains merge, creating a Melibuto with a smaller, but oddly shaped head. This shape increases the structural rigidity of the head as well as allowing for the larger "brain"-volume to fit inside.

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Prism Bryum continue doing what they have always done, except on a much larger scale.
With their stalks and roots gradually crystalizing, yet still functioning.

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>>1643406
Some coregent smolonyum in the colder waters of the north pole (that's north pole only) evolve into larger, fatter, more tastelessly misshapen forms due to polar gigantism (as they have more mass to surface area, and can thus better retain heat).

Being in cold and dark waters, the blobonyum grow slower than most plants but are supreme at surviving cold winters and are long-lived.

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>>1667234
The Meli's body grows longer leaving more space for their limbs to accomodate, granting the animal more mobility and dexterity. Their legs become slightly calcified, and now resemble the foreclaws in terms of colouration.