Yes, the new trees open a lot of long-needed niches like that.

I made them because I thought it was odd that there weren't really any big trees.

Right now, the supercontinent would be where forests are generally darkest (black-pigmented shade trees), followed by Drake (trees dense but reflected green light gets down easily), then Maineiac (nothing was suited to become a shade tree, much more light reaches the ground), then Hydro and Barlowe (largest trees are palm-like, very sunlit forest floors).

The hook simply doesn't grow in before they leave the pouch. It isn't very sharp, either, so it doesn't cause tearing.

The sap is moved around for the purpose of thermoregulation. I don't think it ever gets really hot, so parasites can adapt.

Tree branches can be very close together. They can also break if you're too heavy.

I'll edit the stuff about their nests.

The pickaxe tamow's nest-making capabilities exceed the abilities of shrogs, making use of wells and chimneys to access water and control air flow. I think it's safe to assume they're pretty smart.

Meta reason for the tree-ening, the treetment, all them new big plants: Arboreal fauna like this are now possible.

Treehook Tamow (Hamotherium furvus)
Creator: Disgustedorite
Ancestor: Pickaxe Tamow
Habitat: Dixon-Darwin Boreal, Vivus Boreal, Darwin Temperate Woodland, Darwin Chapparal, Dixon-Darwin Rocky, Vivus Rocky, Darwin Temperate Rainforest, Javen Temperate Rainforest, Vivus Temperate Rainforest
Size: 50 cm long (excluding tail)
Diet: Herbivore (Obsidoak leaves, Gargantuan Obsiditree leaves, Broad-Trunk Obsiditree leaves, Parasitic Floats, Sapshrooms)
Reproduction: Sexual (Male and Female, Live Birth, Pouch and Milk)

The Treehook Tamow split from its ancestor and moved further inland, making its home in mixed, woodland, and rainforest habitats where the new giant obsidian trees are present. Its digging claws became more hooked, allowing it to become arboreal. It is smaller and it has lost its back spikes so that it may fit between branches more easily. Its dark, faintly striped coloration helps it blend in with the branches of the black trees as well as the dark leaf litter below. It has taken on a more stable semi-plantigrade stance. Similar to its ancestor, it is social and lives in big groups, or colonies, which work together to construct nests.

To the Treehook Tamow, the giant trees with their many branches are both food and habitat. It consumes their leaves as well as the parasitic flora growing on them, and it will construct complex communal treehouses from sticks, leaves, and mud deep in the branches. The mud is obtained by climbing down from the trees after rain, gathering a mouthful of it, and climbing back up. The mud is mainly used to plug up gaps in the walls; the Treehook Tamow is capable of building without it, but it can serve as some protection from water damage in the rainier parts of its range. The treehouses have multiple floors and can have entrances leading off to different branches. The exact appearance of the treehouse can vary somewhat, but the most common appearance consists of sticks woven into a roughly spherical shape as much as 10 meters across and connected to other such spheres by either branches or more woven sticks. This nest structure is based partially on instincts inherited from the Treehook Tamow’s ancestor, the Pickaxe Tamow, and its more distant ancestor, the Marine Tamow, but elaborated on by learned behavior.

A given colony of Treehook Tamows will consist of several families of parents and joeys, but the breeding female of one of the families will be the leader of the entire colony. The reason for a female leader is connected to construction of the communal treehouse. As safe nests are required for raising joeys, female Treehook Tamows are naturally anxious about any potential for catastrophic nest failure (that is, the nest falling apart and dumping its inhabitants out of the tree), so therefore a female leader will be quicker to notice dangerous mistakes than a male leader would be. Leadership is inherited by firstborn female joeys, but leadership can also change if a leader is too aggressive or lets too many catastrophic mistakes get through, causing the rest of the colony to “revolt” (that is, run her out of the colony). Despite female leaders being the default, male leaders still also occur fairly often. The Treehook Tamow is monogamous and does not fight over mating rights.

The Treehook Tamow, like most Shrews, has marsupial-like reproduction. It gives birth to fetus-like offspring no bigger than a grain of rice which must nurse in a pouch on their mother’s underbelly. As they grow larger, the offspring will eventually leave the pouch and start riding on their mother’s back until their tail hooks are developed enough for them to hang from branches. The insides of nests may have sticks embedded in the walls meant specifically for joeys to practice using their tails without any risk of falling out of the tree, an innovation made possible by the relatively high intelligence it inherited from its ancestor. Though the Treehook Tamow technically gives birth to as many as three dozen tiny offspring at a time, it only has 6 nipples, so only up to 6 offspring will survive to adulthood.

In the more open parts of its range, the Treehook Tamow will walk on the ground to new trees. It is more vulnerable to predation during this time, as it is when it walks on the forest floor as well.

Mangrovecrystal (Rabidoradix potentenimis)
Creator: Disgustedorite
Ancestor: Towering Grovecrystal
Habitat: Yokto Salt Marsh, Always Salt Swamp, Glicker Salt Swamp, Gec Salt Swamp, Biocat Salt Swamp, Huggs Salt Marsh, Glocks Salt Marsh, Bone Salt Marsh, Irinya Salt Marsh, Blood Salt Swamp, Bardic Salt Swamp, Kenotai Salt Swamp, Pipcard Salt Swamp, Wright Salt Swamp, Ichthy Salt Swamp, Jeluki Salt Swamp, Soma Temperate Coast, King Tropical Coast, Chum Tropical Coast, Elerd Temperate Coast, Wind Temperate Coast, Dass Temperate Coast, Jlindy Tropical Coast, BigL Tropical Coast, Clarke Temperate Coast, Fermi Temperate Coast, Fly Tropical Shallows, Hydro Tropical Coast, Oz Temperate Coast, Maineiac Temperate Coast, North LadyM Temperate Ocean, North Jujubee Temperate Ocean, LadyM Tropical Ocean, Jujubee Tropical Ocean, South Jujubee Temperate Ocean, South ladyM Temperate Ocean
Size: 20 meter tall individuals, variable colony size
Diet: Photosynthesis
Reproduction: Asexual (Very Fast Budding)

The Mangrovecrystal split from its ancestor. Like its close cousin, the Vesuvianite Tree, it has grown very tall and gained some additional branching. However, it is distinct in its own way--it has moved to the estuaries and shallows and, using its ability to rapidly bud from its roots, started forming massive mangrove-like clonal colonies. These colonies can sometimes break apart, with sections of them floating out to sea and dispersing to other landmasses globally, carrying small fauna which live among their branching roots with them. This makes them an extremely powerful disperser of small fauna, particularly genus groups. They can also settle down again in the shallows to form small islands as sediment gathers around them and the colony continues to grow. It cannot live submerged and depends on its ability to float to not drown when colonies break apart.

The Mangrovecrystal floats using internal air-storing tissue, which is also responsible for bringing oxygen to its submerged roots. Keeping them partially afloat even when anchored keeps the superficially grass-like aerial roots exposed to air, so that they may take in atmospheric nitrogen. It removes excess salt by storing it in some of its crystal leaves; more specifically, the soft core of a given crystal is what is filled with salt, while the outer shell continues to perform photosynthesis until its interior is completely filled. When this occurs, the crystal is shed.

The Mangrovecrystal forms a microhabitat among its roots potentially capable of supporting large-ish fauna. Its roots, as well as the leaves atop each individual, are edible and capable of supporting nests. Colonies are functionally immortal, only dying when completely eaten, struck with disease, or injured to the point of sinking, as they keep budding new individuals constantly. Notably, they struggle to survive on islands created by Raft-Building Cone Puffgrass, as the “sediment” surrounding these islands are not what they adapted for.

The ''are'' there is wiki code. It's double apostrophes.

I've edited the other parts.

If I were to evolve them as 25681538915618634789563478561 individual species feeding on different food sources I'd still put them all in the same genus. As for the plyent thing, that's just because plyents are more mobile and animal-like and I didn't want to deal with the plant vs animal technicalities. Also, these do not give and advantage to plyents, because the floats are so wimpy that anything can eat them and they don't kill huge swaths of flora like a plague.

I've clarified.

Parasitic Floats (Volaparasitiphyta spp.)
Creator: Disgustedorite
Ancestor: Cloudbubble
Habitat: Global (Sagan 4)
Size: 1-2 cm wide bubbles, 10-20 cm long colonies
Diet: Photosynthesis, Parasite (Vascular Flora)
Reproduction: Sexual (Hermaphrodite, Spores), Asexual (Fragmentation of Colony)

The Parasitic Floats split from their ancestor. Their feeding tendrils have been modified to be used to stick to other flora, from which they will then leach nutrients. They are colonial, forming long, sometimes branching colonies created by incomplete division, which float with help from Cryoutine endosymbiotes which produce hydrogen. They can be found anywhere where some kind of vascular flora is present except underwater, including in the sky where they are commonly seen as parasites of the Cloudgrass. Some species are able to produce chitinase, which allows them to feed off of crystal and glass flora as well. Their parasitic capability has completely replaced their ancestor’s aeroplanktivory.

Parasitic Floats retain small flagellated tendrils, which they can still use to “swim” towards moisture. However, instead of embedding themselves in clouds, when they reach an area wet enough to support tall flora they start rotating around until one end bumps into a plant. The sticky tendrils latch on and digest through the victim plant’s exterior, granting them access to the nutrients inside. While attached they can be likened to a tiny vine that hangs upwards instead of down, their flotation ability serving to keep them exposed to light. Sometimes, both ends will latch onto a plant; this is especially common in environments with a high density of flora available, or where the flora have many branches that are close together.

Like their ancestor, Parasitic Floats have two modes of reproduction, sexual and asexual. Sexual spores are dispersed by wind and are collected and fertilized by other colonies. Spores must germinate in a cloud, fog, or attached to a plant. Rather than depending on their environment for symbiotes, fertilized spores come “pre-packaged” with a sample of the mother’s symbiotes. They can also reproduce with macroscopic binary fission, with a single bubble elongating and then splitting. However, their binary fission is defective--they don’t fully detach, instead remaining connected by digestive tendrils. They can break apart from one another fairly easily, however, making their asexual reproduction instead more of a fragmentation.

There are many species of Parasitic Float. Those found in mature woodland and rainforest biomes tend to favor areas that are exposed to direct sunlight (therefore likely above the canopy) so that the wind will catch their spores; other species are either neutral or prefer shade, as being in the shade makes them less conspicuous to potential predators. Most species specialize in a particular kingdom of flora, but some are generalists instead. Some species will specifically feed on pairs of physiologically similar flora, such as crystal and glass flora, or purple and black. No species feed on plyents. They are generally absent from glaciers, tundras, and dunes/hot deserts, due to a combination of harsh conditions and lack of flora available; they ''are'', however, present in alpine tundras, as though harsh they nonetheless support enough flora to sustain a population.

Clarified. And I'm leaving in "Terran human" because it fits in with references to Earth organisms in other species' descriptions.

Tree Pinyuk (Pennayakus arborealus)
Creator: Disgustedorite
Ancestor: Dwarf Pinyuk
Habitat: Drake Boreal, Drake Rocky, Drake Chaparral, Yokto Temperate Riparian, Drake Temperate Woodland
Size: 70 cm long
Diet: Herbivore (Luroot leaves, Eastward Luroot Leaves, Supershrooms, Sapshrooms, Sunstalks, Forest Quone, Glaalgaes, Cryobowls, Pioneeroots, Fuzzweed, Lurspire leaves, Lurcreeper leaves, Towering Grovecrystal crystals, Vesuvianite Tree crystals)
Reproduction: Sexual (Male and Female, Hard-Shelled Eggs)

The Tree Pinyuk split from its ancestor and proceeded to learn how to climb trees. It does not have any particular new climbing adaptations, it simply balances on branches using its hooves. This is similar to the behavior of some Terran goats. One adaptation it does have, however, is that a row of feathers along its sides can be splayed out to slow its fall. It isn’t quite a true glider, but it can drop from heights as great as 10 meters without injury. These long feathers also serve for sexual display. It also now has a nearly full coat of feathers, instead of only being feathered in some areas. It no longer has blue legs because they were actually extremely, extremely bad for camouflage, making its ancestor look like a floating purple orb which prompts a double take rather than actually doing any good to keep it hidden.

Despite its name, however, the Tree Pinyuk does not actually live entirely in trees. It is simply called that because of how much more conspicuous it is to see it somehow at the top of a tree despite having no adaptations for grasping or climbing. In reality, though it can climb trees to feed, it mostly uses them for nesting and escaping predators. It spends much more of its time foraging for food on the ground. It has greatly reduced its chin-spike so that it doesn’t interfere with feeding. Though the chin spike is no longer sexually dimorphic, the feathers are. The flank feathers are present in both sexes but are orange in males, and males also have an orange crest.

The Tree Pinyuk nests in vesuvianite trees, high up and away from predators. It may live in fairly large groups of up to 40 members which all share the same tree. It is polygamous, and males will fight one another for the right to mate, though this is far more ritualistic than in its ancestor so that they do not fatally wound one another and fail to reproduce at all. Its calls sound disturbingly like the screams of a Terran human male in distress. Its nests are round and constructed of sticks and feathers, and it lays 30-50 eggs at a time. Vulnerable to predation, most of its offspring are eaten before they can reach full size.

Notably, the Tree Pinyuk does not technically hear with its eyes like its ancestor did. Rather, the bony crest making up the “pinna” has a round hole on the inside, which causes the skin of the “pinna” to function as a far more effective tympanic membrane. This gives it the best hearing of any eucaudopodosaur (or "dweller") thus far. Like its ancestor, it has 2 toes on most feet but 3 on its tail-foot.

I mean, it's already more descriptive than its ancestor's, which was just a few gens ago.

I made its sap bitter.

I'll just shorten it to 30 meters.

Four-Prongion (Gigapropagum tetrabrachium)
Creator: Disgustedorite
Ancestor: Bristlebranch Treebion
Habitat: Maineiac Boreal, Maineiac Temperate Woodland, Maineiac Chaparral, Maineiac Rocky, Maineiac Temperate Riparian, Maineiac Volcanic
Size: 30 meters tall
Diet: Photosynthesis
Reproduction: Sexual and Asexual (Hardy Spores)

The Four-Prongion split from its ancestor. Unlike its cousin, the Repeating Treebion which used repetition of the trunk to increase its height, the Four-Prongion has opted to make its hook-branches dramatically longer. The branches now also have branches of their own, bearing many bristly leaves. The Four-Prongion has also developed sexual reproduction, where its spores will fertilize one another on contact, allowing it to have far more genetic diversity. It can still produce asexual clonal spores.

The Four-Prongion can take as long as 80 years to reach full size, and it can live for centuries. It can also recover and regrow broken branches. Its branching branches are suited to supporting small arboreal fauna, though they would snap right off if megafauna attempted to climb. The trunk and the four main branches are supported by wood, assisting in its durability.

Repeating Treebion (Gigapropagum repititum)
Creator: Disgustedorite
Ancestor: Bristlebranch Treebion
Habitat: Maineiac Boreal, Maineiac Temperate Woodland, Maineiac Chaparral, Maineiac Rocky, Maineiac Temperate Riparian, Maineiac Volcanic
Size: 60 meters tall
Diet: Photosynthesis
Reproduction: Asexual (Hardy Spores)

The Repeating Treebion split from its ancestor and got much larger, becoming a true tree. As its name suggests, it repeats itself as it grows, increasing its height and surface area for photosynthesis considerably. It has several hook-branches in a ring radiating around its trunk every few meters. The bristle leaves have taken on a branching shape to increase their surface area for photosynthesis as well. It also has a woody trunk, supporting its height.

Unlike other new trees appearing around this same time, the Repeating Treebion is not suited to supporting arboreal creatures. Its spores are very hardy, helping to ensure its reproductive success. It can take decades to reach its full height, but it can live for hundreds of years.

Convergent evolution probably visually affects plants and plant-like things more than anything else in the world.

I've edited.

Vesuvianite Tree (Vesuviana polycrystalla)
Creator: Disgustedorite
Ancestor: Towering Grovecrystal
Habitat: Drake Boreal, Drake Rocky, Drake Chaparral, Yokto Temperate Riparian, Drake Temperate Woodland, Ramul Temperate Woodland; Spores Only: Atmosphere (Troposphere)
Size: 56 meters tall
Diet: Photosynthesis, Detritivore
Reproduction: Sexual (Airborne Spores), Asexual (Budding)

The Vesuvianite Tree split from its ancestor and grew very large, due to it having already been the largest flora in its environment and there not being anything in the way of it getting larger. It has regained airborne spores, allowing it to reproduce sexually. The spores do not produce cellulase. It has gained greater branching capability, which has caused it to look more like a tree and cast shade on competing flora. A microclimate has formed among its branches, where arboreal and semi-arboreal fauna may climb and nest. Its spores are released from dedicated spore crystals, as in its more deadly distant ancestors. Its reddish roots are now underground to protect them from potential predators, leaving just the yellowish chitinous trunk above ground. Its spores are airborne enough that they become aeroplankton, and as such it is also present on Ramul Island, though spores that travel much further usually die. It is still able to bud asexually and form clonal colonies, but it does this less often, as these offspring are often too close and will compete with their parents for sunlight.

The Vesuvianite Tree is slower-growing than its ancestor. It can take as long as 100 years to reach full size, though it can live for well over a thousand. To help it support its chitinous structures, it has regained its long-lost detritivory so it may obtain more nitrogen, using its roots to feed on organic matter underground and on the remains of other flora in its environment. This helps young trees especially, so that they may grow even in the dark shadows of other flora.

Gargantuan Obsiditree (Negrapetalum giganticus)
Creator: Disgustedorite
Ancestor: Broad-Trunk Obsiditree
Habitat: Darwin Tropical Rainforest, North Darwin Tropical Woodland, Darwin Temperate Rainforest, Darwin Temperate Woodland, Vivus Temperate Rainforest, Javen Tropical Woodland, Javen Tropical Rainforest, Javen Temperate Rainforest, Dixon Tropical Rainforest, Dixon Tropical Woodland, Bardic Tropical Riparian, Kenotai Tropical Riparian, Pipcard Tropical Riparian, Wright Tropical Riparian, Terra Tropical Riparian, Ichthy Tropical Riparian, Always Tropical Riparian, Glicker Tropical Riparian, Gec Tropical Riparian, Biocat Tropical Riparian, Huggs Temperate Riparian; Spores Only: Atmosphere (Troposphere)
Size: 100 meters tall
Diet: Photosynthesis
Reproduction: Sexual (Airborne Cylindrical Spores)

The Gargantuan Obsiditree split from its ancestor and achieved a truly massive size. Like its cousin, the Obsidoak, it now has multiple clusters of spore pods; however, instead of scattered throughout, these are associated with specific major branches. It is so tall that its spores have become aeroplankton, allowing it to be present in disconnected habitats all over the supercontinent.

The Gargantuan Obsiditree is more common in its rainforest and riparian habitats than in the slightly drier woodlands. Though its black pigmentation would normally make it vulnerable to overheating, it is able to mitigate this with evaporation--convergent with Obsiditall, the Gargantuan Obsiditree, too, has gained the ability to sweat. Similar to mammalian sweating, the evaporation of its “sweat” takes excess heat with it. Its leaves are shed regularly, especially in the temperate parts of its range, covering the forest floor in leaf litter. It can take centuries to reach full size and can live for thousands of years.

Fixed to microhabitat.

I'm not really sure how to elaborate on its sap circulation. Trees in real life can control where their sap goes, as it serves to carry nutrients throughout the plant; it's using the same mechanism.

Sheather says this looks like a cloud. It's not a cloud

Obsidoak (Negrapetalum umbraiactus)
Creator: Disgustedorite
Ancestor: Broad-Trunk Obsiditree
Habitat: Dixon-Darwin Boreal, Vivus Boreal, Darwin Temperate Woodland, Darwin Chapparal, Dixon-Darwin Rocky, Vivus Rocky, Huggs Temperate Riparian, Bone Temperate Riparian, Irinya Temperate Riparian
Size: 50 meters tall
Diet: Photosynthesis
Reproduction: Sexual (Airborne Cylindrical Spores)

The Obsidoak split from its ancestor and became considerably larger due to lack of competition. This massive tree, found most often in woodlands and riparian biomes but also scattered around more open or mixed biomes, has also gained many small spore chambers instead of just a few large ones, now scattered throughout its branches. This makes it very reproductively successful. Its sap is somewhat bitter, though it is not poisonous.

The Obsidoak’s branching now extends to its trunk as well, increasing its surface area for photosynthesis and creating a huge microclimate for fauna to climb and nest in. This also vastly increases the amount of shade it casts, which helps eliminate competing flora. Though the leaves on top can get very hot in the sun, the vascular system of the Obsidoak is designed to carry hot sap into shaded parts of the tree to cool off, preventing it from overheating in the summer. The Obsidoak can take over 150 years to reach full size, but it can live for a few thousand.

The wiki has a lot of upload errors, of the same kind that Beta used to suffer from where people would use other pages as templates and forget to change everything, resulting in such things as 6 cm megafauna, egg-laying descendants of live bearers, and more. Because of the loss of all old compendiums, there's only a small handful that can be fixed successfully. What should be done about the rest?