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35% Oxygen: Carboniferous T-ShirtStep back into Earths deep past with the 35% Oxygen: Carboniferous T Shirt, inspired by the prehistoric atmosphere of the late Paleozoic Era. Featuring a giant dragonfly (Meganeura)a product of hyperoxygenated air during the Carboniferous Period (approx. 359299 million years ago)this design celebrates a time when towering lycopsids, vast coal forests, and massive arthropods dominated Earths lush wetlands. Printed on eco friendly material and designed

this t-shirt features a beautiful and unique design of blue mushrooms and a forest background

Ichthyostega ventured forth

the design captures the majestic presence of this prehistoric titan in earthy tones and a distressed linocut aesthetic—perfect for natural history lovers and retro design fans alike

this dynamic 1980's vintage design transports the viewer to the age of dinosaurs with a vivid retro palette

Crafted with eco-friendly materials

Explore the beauty of the great outdoors with our Alpine Sunset River Valley T-Shirt

this shirt is perfect for curious minds who love dinosaurs

but also makes a positive impact

and anyone fascinated by Earth’s prehistoric past

this t-shirt is perfect for anyone looking to express their passion for the universe

this shirt doesn’t just look good—it does good

Small Shirt

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