Bugs Amphibians and the Rise of Giants

Eon XXX – The Age of Bugs (Carboniferous)

“Giant insects and towering forests dominate the land, while swamps teem with life.”

In a world blanketed by towering forests and dense swamps, the air hums with the buzz of life, thick with oxygen and teeming with the frenetic energy of evolution. Gigantic ferns and ancient club mosses stretch toward the sky, casting the earth in a lush, green haze. This primeval landscape is ruled by insects of unimaginable size—dragonflies with wingspans rivaling hawks glide above the swampy undergrowth, their wings beating the rhythm of the forest’s pulse.

On the forest floor, the evolution of colossal arthropods has reached its zenith. Giant cockroach-like creatures scuttle between massive ferns, while enormous millipedes and centipedes slither along the damp ground, their bodies the length of tree trunks. The first amphibians emerge from the water’s edge, cautiously stepping onto the land in search of new territory, driven by the promises of untapped niches.

The seas, too, are alive with strange new life—giant arthropods with armored exoskeletons and predatory instincts patrol the shallows, their bodies pulsing with deadly intent. In these stagnant waters, the chemistry of evolution is at its most experimental. The flourishing of life is not just limited to insects—giant plants, ancient trees, and strange fungal blooms fill every corner of the earth with new evolutionary potential.

Among the ancient trunks and spore-choked hollows, new powers stir. Phase Spiders, warped by planar energies, blink through reality’s seams, spinning ethereal webs and haunting the edges of perception like ghostly predators. Towering above the undergrowth, Giant Beetle Variants—from horned Rhinobeetles to explosive Bombardiers—roam the land as living siege engines, sacred mounts, and apex grazers. Deep within the jungle’s fungal warrens and resin towers, Formians and Myrmids establish disciplined hive-empires, weaving order from chaos with living architecture and martial precision. Their rigid societies clash with wild Thri-kreen tribes and alien swarms, as the struggle for dominance in this verdant, primeval world intensifies.

In the deep, cool shade of these jungles, giant insects reign supreme. Sentient insect races, like the industrious and hierarchical Formians, the mystical and militant Myrmids, and the nomadic, alien-like Thri-kreen, begin to form primitive societies. They carve out territory, establish alliances, and wage wars beneath the canopy. For those who dare delve into this dense, pulsating world, dangers lie in wait—giant wasps, venomous spiders, swarms of aggressive ants, and burrowing horrors like Ankhegs and Kruthik swarms. Their colonies sprawl like cities beneath the surface, hidden just beneath the roots of the world.

As the Age of Bugs marches on, the land becomes a sprawling, dangerous wilderness, where life is both wondrous and perilous. Every corner seethes with primal magic and evolutionary ambition. And in the chaos of this dense, bug-infested world, new forms of life will emerge—pushing forward the tapestry of evolution toward something yet unseen.

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Eon XXXI – The Age of Amphibians

Eon XXXI – The Age of Amphibians (Permian)

“Amphibians rule the land, and the seas become the domain of strange, armored creatures.”

In the shifting climates of the Permian, Earth’s surface morphed from endless swamp into a patchwork of drying basins and verdant wetlands. As continents rose and fell, amphibians—masters of both water and land—assumed unrivaled dominion. This was a world where every shoreline, riverbank, and marsh lagoon rang with the chorus of croaks and bellows.

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The Reign of the Amphibians

Colossal Croakers and Salamanders

Gigantic frogs and salamanders, some the size of modern-day bears, bordered every pool and pond. These ancient behemoths boasted tough, leathery hides and powerful limbs, allowing them to skitter across floodplains in search of prey. Their songs—deep, resonant calls—echoed through the mist, proclaiming territory and warding off rivals.

Frogfolk and Swamp Kin

Among these giants, sapient amphibian races took shape:

• Bullywugs emerged in murky bogs, their webbed feet and powerful legs making them fierce hop-raiders. They erected stilted villages of driftwood and moss, worshipping primordial water spirits and defending their marshlands with spears tipped in toxic batrachotoxin.
• Grungs evolved in dense swamp forests, their skin hues ranging from emerald to violet marking social castes. With crude but effective venom secreted from warted glands, grungs hunted small creatures and farmed fungal gardens, building arboreal platforms among towering club moss trees.
• Kuo-toa ventured from briny coastlines to brackish estuaries. Half-blind but psychically attuned, they formed fanatical fishing communes, revering eldritch sea deities and sculpting idols from chitinous shells.
• Locathah formed along the great river deltas and coastal lagoons. These bony-plated fishfolk, able to breathe both air and water, built reed-and-shell villages on stilts and wove nets of kelp to fish the shallows. United by councils of Shellmothers, they traded pearl-like shells for amphibian hides and guarded the Reef Temples that honored their ancestral Reef Spirit.

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Transition to Reptilia

Proto-Reptilian Ascendancy

In the drier uplands, amphibians grew less at ease. Here, the first scaly, egg-laying proto-reptiles appeared—creatures with leathery eggshells impervious to desiccation. They hunted the fringes of swamps, their cold-blooded metabolisms allowing them to wait patiently for prey. With time, these reptilian pioneers would inherit the land, but for now they remained scattered exiles on amphibian turf.

Aquatic Armorscape

Armored Fish Armadas

Beneath the waters, armored “fish” ruled. These plate-clad leviathans, some sporting spiked carapaces or bony frills, engaged in deadly contests of head-butts and ramming attacks. Their jaws, lined with crushing plates, preyed upon mollusks and smaller swimmers alike. The constant evolution of shell and tooth mirrored the deadly competition of the land above.

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Twilight of the Swamps

Climatic Shifts and Decline

As the Permian epoch wore on, the world’s elemental balance was upended by the Emberbound Brotherhood’s obsession with fire. Their grand forges, fueled by raw elemental energy, belched ash and brimstone into the atmosphere. Thick volcanic haze blocked sunlight, acid rains scarred the land, and relentless heat waves baked once-vast swamps into fractured marshes.

Fragmentation of the Wetlands

Without steady rains, the sprawling wetlands that had sustained colossal croakers and salamander titans fragmented into isolated ponds. Moisture-dependent amphibians—once masters of land and water—found their breeding grounds disappearing. Some frog-kin clans escaped underground, burrowing into cool, damp caverns. Others entered long estivation, cocooned in mud until the rains returned. Yet many great colonies simply could not endure the lethal combination of drought and acidic downpours.

Rise of the Reptiles

Amid this collapse, the first true reptiles seized their chance. Their leathery eggs and scaly hides resisted desiccation and acid, allowing them to thrive where amphibians faltered. As wetlands shrank, reptilian pioneers spread across the drying continents, claiming territories that had once teemed with giant frogs.

The Salamanders’ Last Rite

Refusing to perish with their homeland, the Emberbound salamander-lords enacted a final, desperate gambit. On a volcanic plateau, they wove a colossal ritual—tearing open a rift to the Elemental Plane of Fire itself. In columns of living flame, the salamanders marched through the portal, their forge-cities dissolving behind them into molten ruins.

Exile and Renewal

Beyond the rift lay a realm of eternal inferno: rivers of molten metal, mountains of living flame, and skies awash with embers. There, the Emberbound rebuilt their empire—spired citadels of obsidian and crystal—ever stoking the fires that had doomed their world. Though they withdrew from the Material Plane, their legacy endures in the genes of reptiles and in the whispered lore of frog-folk, who remember the salamanders’ blazing ascent to a realm of pure flame.

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Eon XXXII – The Rise of the Dinosaurs (Triassic)

“The age of giant reptiles dawns as dinosaurs begin to rule the Earth.”

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A World Remade

As Pangaea’s fractured edges drifted apart, vast deserts baked the continental interiors while gleaming rivers and freshwater lakes traced new veins across the land. Tropical jungles pressed against arid badlands, and humid coastlines gave way to windswept plains. In this patchwork world, the first true dinosaurs—small, quick bipeds—emerged onto the scene, soon followed by lumbering giants whose necks arched above the earliest conifers.

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Dominant Reptiles

• Early Dinosaurs: From fleet-footed rippers no larger than wolves to bulky, long-necked herbivores, dinosaurs exploited every niche. Their razor-sharp teeth and armored backs made them apex predators and hulking grazers alike.
• Crocodylomorphs & Protorosaurs: Riverbanks teemed with crocodile-ancestors, stealthy ambush hunters in scaly armor. In rocky uplands, wingless “riders”—protorosaurs—skittered on lanky limbs, hinting at the mastery of land before the skies came.
• Marine Giants: In the warm seas, ichthyosaurs streaked like living torpedoes, while plesiosaurs paddled wide-flippered bodies through offshore depths, their necks sweeping across shoals of fish.
• First Pterosaurs: High above the shoreline, leathery wings unfurled for the first time. These early fliers—graceful gliders with tooth-lined beaks—claimed the sky long before birds.

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Troglodyte Tribes

Amid rocky caves and shaded grottoes on riverbanks, troglodytes carved out a harsher niche. These primitive reptilian humanoids, covered in mottled scales and exuding a noxious stench, thrived in deep, dark caves that repelled larger predators. Organized into small, tight-knit clans led by chieftains known as Stenchlords, troglodytes hunted both on land and in shallow waters, ambushing prey with poisoned barbs and crude stone weapons. Their subterranean strongholds—networks of caverns lined with bone trophies—echoed with guttural chants honoring ancient earth-spirits.

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The Great Transition

By the end of the Triassic, these colossal reptiles had reshaped every ecosystem. The great forests bowed under the weight of browsing sauropodomorphs, while coastal marshes fell silent as their amphibian rulers were outpaced by the egg-laying scaly titans. Yet in shadowed caves, the troglodytes’ lantern-mushroom gardens glowed, preserving the ancient knowledge of the underdark.

Eon XXXII closed with the roar of dinosaurs echoing across a world reborn—an age where reptilian supremacy reigned supreme, and the subterranean tribes of troglodytes whispered of darker realms yet to come.