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Pulmonoscorpius giant prehistoric scorpion

Long-Gone Creatures vol 2 Pulmonoscorpius

Pulmonoscorpius – The Giant Scorpion of Carboniferous: One of the biggest prehistoric insects ever existed

Between 360 and 285 million years go plants were growing at a much faster pace.

Huge forests full of ferns, mosses, and some of the earliest vascular plants conquered the planet.

The wood-eating bacteria that now decompose dead wood taking oxygen and releasing CO2 didn’t exist yet so the co2 wasn’t being released back into the atmosphere.

Earth’s giant primordial forests were thus taking a lot of carbon dioxide and pumping oxygen, reaching an all-time high level of oxygen in the atmosphere, 35%, whereas today’s is only 20% (That’s how future Coal deposit was created).  

And that is what made giant arthropods possible

Arthropods breathe through an external opening and that puts a limit on their body size.

But not in the Carboniferous: THE AGE OF GIANT INSECTS.

Pulmoscorpion, The breathing scorpion

The breathing scorpion, a gigantic land-based arthropod, its length of over 70 centimeters could have reached up to 1 meter.

Is believed to be a diurnal visually orientated hunter because of its proportionally large lateral compound eyes, which have atrophied in the primarily nocturnal modern scorpions.

Who’s behind the Permian-Triassic mass extinction?

Because the stinger was comparatively much larger than its chelae, it probably used its venom to subdue, and possibly begin the digestion of its prey, rather than seizing and tearing it apart with its pincers.

Due to its large size, it is thought to have eaten other large arthropods,‭ ‬and maybe even the smaller amphibians and early reptiles.

That makes pulmoscorpio a predator of your own grandfather’s brood. 

Interested in giant insects? Have a look at our article about the Meganeura: the Largest Flying Insect Ever Existed

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